MAGENT

GI · WEDGE

Simplified Endoscopic Score for Crohn's Disease

SES-CD

Sum four caller-assigned Daperno 2004 SES-CD integers (ulcers, ulcerated_surface, affected_surface, narrowings; each 0-3) in each of five ileocolonic segments (ileum, right_colon, transverse_colon, left_colon, rectum) and return the total (max 60). Does not return activity bands.

WEDGE $0.005 USDC GET /api/calc/ses_cd

Markdown: /docs/ses-cd.md · Canonical: https://magentlab.com/docs/ses-cd

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Sum four caller-assigned Daperno 2004 SES-CD integers (ulcers, ulcerated_surface, affected_surface, narrowings; each 0-3) in each of five ileocolonic segments (ileum, right_colon, transverse_colon, left_colon, rectum) and return the total (max 60). Does not return activity bands.

When to use

When an agent has already assigned Daperno 2004 SES-CD Table 1 integers for the four items in each of five segments and needs the published total, not a diagnosis, CDEIS, CDAI, or later remission cutoffs.

When not to use

  • Not a medical device and not a Crohn's diagnosis or a treatment order.
  • Each of the 20 params is a caller-assigned Daperno 2004 integer 0-3. magent does not perform endoscopy. Unexamined segments are 0 as assigned by the caller.
  • Theoretical max is 60 (five segments × four items × 3). magent does not apply a 56 clamp.
  • Daperno 2004 did not publish SES-CD remission or response cutoffs. magent returns score and max_score only and does not apply later activity bands.
  • Not CDEIS and not the Best 1976 CDAI.

Formula

SES-CD = sum of ulcers, ulcerated_surface, affected_surface, and narrowings (each integer 0-3) in ileum, right_colon, transverse_colon, left_colon, and rectum; Daperno 2004 caller-assigned; max 60; unexamined segments 0 as assigned by the caller; no published activity bands

Citation

Title
Development and validation of a new, simplified endoscopic activity score for Crohn's disease: the SES-CD.
Authors
Daperno M, D'Haens G, Van Assche G, et al.
Source
Gastrointest Endosc. 2004;60(4):505-512
DOI
10.1016/s0016-5107(04)01878-4

Worked example

All twenty params 0

Given: ileum_affected_surface=0ileum_narrowings=0ileum_ulcerated_surface=0ileum_ulcers=0left_colon_affected_surface=0left_colon_narrowings=0left_colon_ulcerated_surface=0left_colon_ulcers=0rectum_affected_surface=0rectum_narrowings=0rectum_ulcerated_surface=0rectum_ulcers=0right_colon_affected_surface=0right_colon_narrowings=0right_colon_ulcerated_surface=0right_colon_ulcers=0transverse_colon_affected_surface=0transverse_colon_narrowings=0transverse_colon_ulcerated_surface=0transverse_colon_ulcers=0

  1. Five segments × four items, each 0
  2. Score = 0 (max 60). No activity band.

Published theoretical maximum

Given: ileum_affected_surface=3ileum_narrowings=3ileum_ulcerated_surface=3ileum_ulcers=3left_colon_affected_surface=3left_colon_narrowings=3left_colon_ulcerated_surface=3left_colon_ulcers=3rectum_affected_surface=3rectum_narrowings=3rectum_ulcerated_surface=3rectum_ulcers=3right_colon_affected_surface=3right_colon_narrowings=3right_colon_ulcerated_surface=3right_colon_ulcers=3transverse_colon_affected_surface=3transverse_colon_narrowings=3transverse_colon_ulcerated_surface=3transverse_colon_ulcers=3

  1. Five segments × four items, each 3
  2. Score = 60 (max 60). No 56 clamp. No activity band.

Also searched as

  • SES-CD
  • Simplified Endoscopic Score for Crohn's Disease
  • Daperno SES-CD
  • SES CD
  • Crohn's endoscopic score SES-CD
  • simplified endoscopic activity score
  • Daperno 2004 SES-CD
  • Crohn's SES-CD

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/ses_cd?ileum_ulcers=0&ileum_ulcerated_surface=0&ileum_affected_surface=0&ileum_narrowings=0&right_colon_ulcers=0&right_colon_ulcerated_surface=0&right_colon_affected_surface=0&right_colon_narrowings=0&transverse_colon_ulcers=0&transverse_colon_ulcerated_surface=0&transverse_colon_affected_surface=0&transverse_colon_narrowings=0&left_colon_ulcers=0&left_colon_ulcerated_surface=0&left_colon_affected_surface=0&left_colon_narrowings=0&rectum_ulcers=0&rectum_ulcerated_surface=0&rectum_affected_surface=0&rectum_narrowings=0

Full URL: https://api.magentlab.com/api/calc/ses_cd?ileum_ulcers=0&ileum_ulcerated_surface=0&ileum_affected_surface=0&ileum_narrowings=0&right_colon_ulcers=0&right_colon_ulcerated_surface=0&right_colon_affected_surface=0&right_colon_narrowings=0&transverse_colon_ulcers=0&transverse_colon_ulcerated_surface=0&transverse_colon_affected_surface=0&transverse_colon_narrowings=0&left_colon_ulcers=0&left_colon_ulcerated_surface=0&left_colon_affected_surface=0&left_colon_narrowings=0&rectum_ulcers=0&rectum_ulcerated_surface=0&rectum_affected_surface=0&rectum_narrowings=0

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge. 

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/ses_cd?ileum_ulcers=0&ileum_ulcerated_surface=0&ileum_affected_surface=0&ileum_narrowings=0&right_colon_ulcers=0&right_colon_ulcerated_surface=0&right_colon_affected_surface=0&right_colon_narrowings=0&transverse_colon_ulcers=0&transverse_colon_ulcerated_surface=0&transverse_colon_affected_surface=0&transverse_colon_narrowings=0&left_colon_ulcers=0&left_colon_ulcerated_surface=0&left_colon_affected_surface=0&left_colon_narrowings=0&rectum_ulcers=0&rectum_ulcerated_surface=0&rectum_affected_surface=0&rectum_narrowings=0"

Parameters

Name Type Required Description
ileum_ulcers integer required Caller-assigned Daperno 2004 SES-CD ulcers for the ileum (integer 0-3; Table 1: 0 none / 1 aphthous 0.1–0.5 cm / 2 large 0.5–2 cm / 3 very large >2 cm). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
ileum_ulcerated_surface integer required Caller-assigned Daperno 2004 SES-CD ulcerated surface for the ileum (integer 0-3; Table 1: 0 none / 1 <10% / 2 10–30% / 3 >30%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
ileum_affected_surface integer required Caller-assigned Daperno 2004 SES-CD affected surface for the ileum (integer 0-3; Table 1: 0 unaffected / 1 <50% / 2 50–75% / 3 >75%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
ileum_narrowings integer required Caller-assigned Daperno 2004 SES-CD narrowings for the ileum (integer 0-3; Table 1: 0 none / 1 single passable / 2 multiple passable / 3 cannot be passed). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
right_colon_ulcers integer required Caller-assigned Daperno 2004 SES-CD ulcers for the right colon (integer 0-3; Table 1: 0 none / 1 aphthous 0.1–0.5 cm / 2 large 0.5–2 cm / 3 very large >2 cm). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
right_colon_ulcerated_surface integer required Caller-assigned Daperno 2004 SES-CD ulcerated surface for the right colon (integer 0-3; Table 1: 0 none / 1 <10% / 2 10–30% / 3 >30%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
right_colon_affected_surface integer required Caller-assigned Daperno 2004 SES-CD affected surface for the right colon (integer 0-3; Table 1: 0 unaffected / 1 <50% / 2 50–75% / 3 >75%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
right_colon_narrowings integer required Caller-assigned Daperno 2004 SES-CD narrowings for the right colon (integer 0-3; Table 1: 0 none / 1 single passable / 2 multiple passable / 3 cannot be passed). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
transverse_colon_ulcers integer required Caller-assigned Daperno 2004 SES-CD ulcers for the transverse colon (integer 0-3; Table 1: 0 none / 1 aphthous 0.1–0.5 cm / 2 large 0.5–2 cm / 3 very large >2 cm). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
transverse_colon_ulcerated_surface integer required Caller-assigned Daperno 2004 SES-CD ulcerated surface for the transverse colon (integer 0-3; Table 1: 0 none / 1 <10% / 2 10–30% / 3 >30%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
transverse_colon_affected_surface integer required Caller-assigned Daperno 2004 SES-CD affected surface for the transverse colon (integer 0-3; Table 1: 0 unaffected / 1 <50% / 2 50–75% / 3 >75%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
transverse_colon_narrowings integer required Caller-assigned Daperno 2004 SES-CD narrowings for the transverse colon (integer 0-3; Table 1: 0 none / 1 single passable / 2 multiple passable / 3 cannot be passed). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
left_colon_ulcers integer required Caller-assigned Daperno 2004 SES-CD ulcers for the left colon (integer 0-3; Table 1: 0 none / 1 aphthous 0.1–0.5 cm / 2 large 0.5–2 cm / 3 very large >2 cm). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
left_colon_ulcerated_surface integer required Caller-assigned Daperno 2004 SES-CD ulcerated surface for the left colon (integer 0-3; Table 1: 0 none / 1 <10% / 2 10–30% / 3 >30%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
left_colon_affected_surface integer required Caller-assigned Daperno 2004 SES-CD affected surface for the left colon (integer 0-3; Table 1: 0 unaffected / 1 <50% / 2 50–75% / 3 >75%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
left_colon_narrowings integer required Caller-assigned Daperno 2004 SES-CD narrowings for the left colon (integer 0-3; Table 1: 0 none / 1 single passable / 2 multiple passable / 3 cannot be passed). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
rectum_ulcers integer required Caller-assigned Daperno 2004 SES-CD ulcers for the rectum (integer 0-3; Table 1: 0 none / 1 aphthous 0.1–0.5 cm / 2 large 0.5–2 cm / 3 very large >2 cm). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
rectum_ulcerated_surface integer required Caller-assigned Daperno 2004 SES-CD ulcerated surface for the rectum (integer 0-3; Table 1: 0 none / 1 <10% / 2 10–30% / 3 >30%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
rectum_affected_surface integer required Caller-assigned Daperno 2004 SES-CD affected surface for the rectum (integer 0-3; Table 1: 0 unaffected / 1 <50% / 2 50–75% / 3 >75%). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.
rectum_narrowings integer required Caller-assigned Daperno 2004 SES-CD narrowings for the rectum (integer 0-3; Table 1: 0 none / 1 single passable / 2 multiple passable / 3 cannot be passed). Unexamined segments are 0 as assigned by the caller. magent does not perform endoscopy.

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/ses_cd Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

  • 1 to 25 items. Each item uses the same keys as the GET query parameters.
  • POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
  • The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
  • HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
  • Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
  • x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "ileum_affected_surface": "0",
      "ileum_narrowings": "0",
      "ileum_ulcerated_surface": "0",
      "ileum_ulcers": "0",
      "left_colon_affected_surface": "0",
      "left_colon_narrowings": "0",
      "left_colon_ulcerated_surface": "0",
      "left_colon_ulcers": "0",
      "rectum_affected_surface": "0",
      "rectum_narrowings": "0",
      "rectum_ulcerated_surface": "0",
      "rectum_ulcers": "0",
      "right_colon_affected_surface": "0",
      "right_colon_narrowings": "0",
      "right_colon_ulcerated_surface": "0",
      "right_colon_ulcers": "0",
      "transverse_colon_affected_surface": "0",
      "transverse_colon_narrowings": "0",
      "transverse_colon_ulcerated_surface": "0",
      "transverse_colon_ulcers": "0"
    },
    {
      "ileum_affected_surface": "0",
      "ileum_narrowings": "0",
      "ileum_ulcerated_surface": "0",
      "ileum_ulcers": "0",
      "left_colon_affected_surface": "0",
      "left_colon_narrowings": "0",
      "left_colon_ulcerated_surface": "0",
      "left_colon_ulcers": "0",
      "rectum_affected_surface": "0",
      "rectum_narrowings": "0",
      "rectum_ulcerated_surface": "0",
      "rectum_ulcers": "0",
      "right_colon_affected_surface": "0",
      "right_colon_narrowings": "0",
      "right_colon_ulcerated_surface": "0",
      "right_colon_ulcers": "0",
      "transverse_colon_affected_surface": "0",
      "transverse_colon_narrowings": "0",
      "transverse_colon_ulcerated_surface": "0",
      "transverse_colon_ulcers": "0"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/ses_cd",
  "items": [
    {
      "components": [
        {
          "value": 0,
          "factor": "ileum_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_narrowings",
          "points": 0,
          "present": true
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Daperno M, D'Haens G, Van Assche G, et al.",
        "doi": "10.1016/s0016-5107(04)01878-4",
        "id": "daperno-2004",
        "pmid": "15472670",
        "source": "Gastrointest Endosc. 2004;60(4):505-512",
        "title": "Development and validation of a new, simplified endoscopic activity score for Crohn's disease: the SES-CD."
      },
      "formula": "ses_cd",
      "formula_expression": "SES-CD = sum of ulcers, ulcerated_surface, affected_surface, and narrowings (each integer 0-3) in ileum, right_colon, transverse_colon, left_colon, and rectum; Daperno 2004 caller-assigned; max 60; unexamined segments 0 as assigned by the caller; no published activity bands",
      "max_score": 60,
      "score": 0
    },
    {
      "components": [
        {
          "value": 0,
          "factor": "ileum_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "ileum_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "right_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "transverse_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "left_colon_narrowings",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_ulcers",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_ulcerated_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_affected_surface",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "rectum_narrowings",
          "points": 0,
          "present": true
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Daperno M, D'Haens G, Van Assche G, et al.",
        "doi": "10.1016/s0016-5107(04)01878-4",
        "id": "daperno-2004",
        "pmid": "15472670",
        "source": "Gastrointest Endosc. 2004;60(4):505-512",
        "title": "Development and validation of a new, simplified endoscopic activity score for Crohn's disease: the SES-CD."
      },
      "formula": "ses_cd",
      "formula_expression": "SES-CD = sum of ulcers, ulcerated_surface, affected_surface, and narrowings (each integer 0-3) in ileum, right_colon, transverse_colon, left_colon, and rectum; Daperno 2004 caller-assigned; max 60; unexamined segments 0 as assigned by the caller; no published activity bands",
      "max_score": 60,
      "score": 0
    }
  ]
}

Response

Field Type Description
formula string ses_cd
formula_expression string Exact expression used
score integer Daperno 2004 SES-CD points 0-60
max_score integer Always 60
components array Per-item caller-assigned points
citation object Daperno et al. Gastrointest Endosc 2004 citation
disclaimer string Not a medical device

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup. 

{
  "components": [
    {
      "value": 0,
      "factor": "ileum_ulcers",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "ileum_ulcerated_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "ileum_affected_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "ileum_narrowings",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "right_colon_ulcers",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "right_colon_ulcerated_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "right_colon_affected_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "right_colon_narrowings",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "transverse_colon_ulcers",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "transverse_colon_ulcerated_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "transverse_colon_affected_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "transverse_colon_narrowings",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "left_colon_ulcers",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "left_colon_ulcerated_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "left_colon_affected_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "left_colon_narrowings",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "rectum_ulcers",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "rectum_ulcerated_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "rectum_affected_surface",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "rectum_narrowings",
      "points": 0,
      "present": true
    }
  ],
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Daperno M, D'Haens G, Van Assche G, et al.",
    "doi": "10.1016/s0016-5107(04)01878-4",
    "id": "daperno-2004",
    "pmid": "15472670",
    "source": "Gastrointest Endosc. 2004;60(4):505-512",
    "title": "Development and validation of a new, simplified endoscopic activity score for Crohn's disease: the SES-CD."
  },
  "formula": "ses_cd",
  "formula_expression": "SES-CD = sum of ulcers, ulcerated_surface, affected_surface, and narrowings (each integer 0-3) in ileum, right_colon, transverse_colon, left_colon, and rectum; Daperno 2004 caller-assigned; max 60; unexamined segments 0 as assigned by the caller; no published activity bands",
  "max_score": 60,
  "score": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP Code When
400 invalid_ses_cd ulcers, ulcerated_surface, affected_surface, and narrowings in ileum, right_colon, transverse_colon, left_colon, and rectum must each be an integer 0-3 (Daperno 2004 SES-CD). Returned before settlement; you are not charged.
400 invalid_items POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400 invalid_item_count items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400 invalid_item each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

  • HBI — Sum Harvey 1980 simple-index items (previous-day well-being, abdominal pain, liquid stools, abdominal mass, and one point per listed complication) and return the total. Does not return later remission or activity bands.
  • CDAI — Compute the Best 1976 Crohn's disease activity index from eight caller-assigned variables and return the rounded integer score. Does not return later trial activity bands.
  • UCEIS — Sum three caller-assigned Travis 2013 UCEIS descriptors (vascular_pattern 0-2, bleeding 0-3, erosions_ulcers 0-3) scored at the most severely affected flexible-sigmoidoscopy segment and return the total (max 8). Uses the 2013 0-8 recode (normal 0). Does not return activity bands.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

  • HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
  • exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
  • HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
  • Execution is timeout-bounded and concurrency-capped.
  • Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.