GI · LIVE

Ulcerative Colitis Endoscopic Index of Severity

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.

LIVE $0.005 USDC GET /api/calc/uceis

Markdown: /docs/uceis.md · Canonical: https://magentlab.com/docs/uceis

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

What it computes

When to use

When an agent has already assigned Travis 2013 vascular pattern, bleeding, and erosions/ulcers at the worst-affected flexible-sigmoidoscopy segment and needs the three-item 0-8 total, not a diagnosis, Mayo DAI, Mayo endoscopic subscore, or the Travis 1996 day-3 steroid rule.

When not to use

Not a medical device and not a diagnosis of ulcerative colitis or a treatment order.
Each descriptor is a caller-assigned Travis 2013 token. magent does not perform endoscopy. Score the most severely affected segment at flexible sigmoidoscopy as assigned by the caller.
Travis 2013 recoded normality to 0 (range 0-8). This is not the Travis 2012 3-11 numbering (normal scored 1) and not the Travis 1996 day-3 intravenous-steroid rule.
Travis 2013 did not publish mild, moderate, or severe cutoffs for the total score. magent returns score and max_score only and does not apply later UCEIS activity bands.
Not the Mayo DAI, not the Mayo endoscopic subscore (MES), and not Truelove and Witts.

Formula

UCEIS = vascular_pattern (normal 0, patchy 1, obliterated 2) + bleeding (none 0, mucosal 1, luminal_mild 2, luminal_moderate_or_severe 3) + erosions_ulcers (none 0, erosions 1, superficial_ulcer 2, deep_ulcer 3); Travis 2013 0-8 recode (normal 0, not Travis 2012 3-11); most severely affected segment at flexible sigmoidoscopy; no published total-score activity bands

Citation

Title: Reliability and Initial Validation of the Ulcerative Colitis Endoscopic Index of Severity.
Authors: Travis SPL, Schnell D, Krzeski P, et al.
Source: Gastroenterology. 2013;145(5):987-995
DOI: 10.1053/j.gastro.2013.07.024

Worked example

All descriptors normal or none

Given: bleeding=noneerosions_ulcers=nonevascular_pattern=normal

vascular_pattern normal 0 + bleeding none 0 + erosions_ulcers none 0
Score = 0 (max 8). No activity band.

All descriptors maximum

Given: bleeding=luminal_moderate_or_severeerosions_ulcers=deep_ulcervascular_pattern=obliterated

vascular_pattern obliterated 2 + bleeding luminal_moderate_or_severe 3 + erosions_ulcers deep_ulcer 3
Score = 8 (max 8). No activity band.

Also searched as

UCEIS
ulcerative colitis endoscopic index
UCEIS score
Travis UCEIS
UC endoscopic index of severity
Travis 2013 UCEIS
ulcerative colitis endoscopy score
UCEIS 0-8

Try

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

/api/calc/uceis?vascular_pattern=normal&bleeding=none&erosions_ulcers=none

Full URL: https://api.magentlab.com/api/calc/uceis?vascular_pattern=normal&bleeding=none&erosions_ulcers=none

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/uceis?vascular_pattern=normal&bleeding=none&erosions_ulcers=none"

Parameters

Name	Type	Required	Description
`vascular_pattern`	string	required · normal, patchy, obliterated	Caller-assigned Travis 2013 UCEIS vascular pattern at the most severely affected flexible-sigmoidoscopy segment: normal (0; arborization of capillaries clearly defined, or blurring or patchy loss of capillary margins), patchy (1; patchy obliteration of vascular pattern), or obliterated (2; complete obliteration). Travis 2013 0-8 recode (normal 0, not Travis 2012 score 1). magent does not perform endoscopy.
`bleeding`	string	required · none, mucosal, luminal_mild, luminal_moderate_or_severe	Caller-assigned Travis 2013 UCEIS bleeding at the most severely affected segment, scored during insertion: none (0; no visible blood), mucosal (1; spots or streaks of coagulated blood on the mucosa ahead of the scope that can be washed away), luminal_mild (2; some free liquid blood in the lumen), or luminal_moderate_or_severe (3; frank blood in the lumen ahead of the endoscope, or visible oozing after washing, or oozing from hemorrhagic mucosa). magent does not perform endoscopy.
`erosions_ulcers`	string	required · none, erosions, superficial_ulcer, deep_ulcer	Caller-assigned Travis 2013 UCEIS erosions and ulcers at the most severely affected segment: none (0; normal mucosa, no visible erosions or ulcers), erosions (1; tiny ≤5 mm white or yellow mucosal defects with a flat edge), superficial_ulcer (2; larger >5 mm discrete fibrin-covered superficial ulcers), or deep_ulcer (3; deeper excavated defects with a slightly raised edge). 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/uceis 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": [
    {
      "bleeding": "none",
      "erosions_ulcers": "none",
      "vascular_pattern": "normal"
    },
    {
      "bleeding": "none",
      "erosions_ulcers": "none",
      "vascular_pattern": "normal"
    }
  ]
}

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/uceis",
  "items": [
    {
      "components": [
        {
          "value": "normal",
          "factor": "vascular_pattern",
          "points": 0,
          "present": true
        },
        {
          "value": "none",
          "factor": "bleeding",
          "points": 0,
          "present": true
        },
        {
          "value": "none",
          "factor": "erosions_ulcers",
          "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": "Travis SPL, Schnell D, Krzeski P, et al.",
        "doi": "10.1053/j.gastro.2013.07.024",
        "id": "travis-2013",
        "pmid": "23891974",
        "source": "Gastroenterology. 2013;145(5):987-995",
        "title": "Reliability and Initial Validation of the Ulcerative Colitis Endoscopic Index of Severity."
      },
      "formula": "uceis",
      "formula_expression": "UCEIS = vascular_pattern (normal 0, patchy 1, obliterated 2) + bleeding (none 0, mucosal 1, luminal_mild 2, luminal_moderate_or_severe 3) + erosions_ulcers (none 0, erosions 1, superficial_ulcer 2, deep_ulcer 3); Travis 2013 0-8 recode (normal 0, not Travis 2012 3-11); most severely affected segment at flexible sigmoidoscopy; no published total-score activity bands",
      "max_score": 8,
      "score": 0,
      "bleeding": "none",
      "erosions_ulcers": "none",
      "vascular_pattern": "normal"
    },
    {
      "components": [
        {
          "value": "normal",
          "factor": "vascular_pattern",
          "points": 0,
          "present": true
        },
        {
          "value": "none",
          "factor": "bleeding",
          "points": 0,
          "present": true
        },
        {
          "value": "none",
          "factor": "erosions_ulcers",
          "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": "Travis SPL, Schnell D, Krzeski P, et al.",
        "doi": "10.1053/j.gastro.2013.07.024",
        "id": "travis-2013",
        "pmid": "23891974",
        "source": "Gastroenterology. 2013;145(5):987-995",
        "title": "Reliability and Initial Validation of the Ulcerative Colitis Endoscopic Index of Severity."
      },
      "formula": "uceis",
      "formula_expression": "UCEIS = vascular_pattern (normal 0, patchy 1, obliterated 2) + bleeding (none 0, mucosal 1, luminal_mild 2, luminal_moderate_or_severe 3) + erosions_ulcers (none 0, erosions 1, superficial_ulcer 2, deep_ulcer 3); Travis 2013 0-8 recode (normal 0, not Travis 2012 3-11); most severely affected segment at flexible sigmoidoscopy; no published total-score activity bands",
      "max_score": 8,
      "score": 0,
      "bleeding": "none",
      "erosions_ulcers": "none",
      "vascular_pattern": "normal"
    }
  ]
}

Response

Field	Type	Description
`formula`	string	uceis
`formula_expression`	string	Exact expression used
`score`	integer	Travis 2013 UCEIS points 0-8 (2013 recode; not Travis 2012 3-11)
`max_score`	integer	Always 8
`vascular_pattern`	string	Caller-assigned token: normal, patchy, or obliterated
`bleeding`	string	Caller-assigned token: none, mucosal, luminal_mild, or luminal_moderate_or_severe
`erosions_ulcers`	string	Caller-assigned token: none, erosions, superficial_ulcer, or deep_ulcer
`components`	array	Per-descriptor caller-assigned points
`citation`	object	Travis et al. Gastroenterology 2013 citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "value": "normal",
      "factor": "vascular_pattern",
      "points": 0,
      "present": true
    },
    {
      "value": "none",
      "factor": "bleeding",
      "points": 0,
      "present": true
    },
    {
      "value": "none",
      "factor": "erosions_ulcers",
      "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": "Travis SPL, Schnell D, Krzeski P, et al.",
    "doi": "10.1053/j.gastro.2013.07.024",
    "id": "travis-2013",
    "pmid": "23891974",
    "source": "Gastroenterology. 2013;145(5):987-995",
    "title": "Reliability and Initial Validation of the Ulcerative Colitis Endoscopic Index of Severity."
  },
  "formula": "uceis",
  "formula_expression": "UCEIS = vascular_pattern (normal 0, patchy 1, obliterated 2) + bleeding (none 0, mucosal 1, luminal_mild 2, luminal_moderate_or_severe 3) + erosions_ulcers (none 0, erosions 1, superficial_ulcer 2, deep_ulcer 3); Travis 2013 0-8 recode (normal 0, not Travis 2012 3-11); most severely affected segment at flexible sigmoidoscopy; no published total-score activity bands",
  "max_score": 8,
  "score": 0,
  "bleeding": "none",
  "erosions_ulcers": "none",
  "vascular_pattern": "normal"
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_uceis`	vascular_pattern must be normal, patchy, or obliterated; bleeding must be none, mucosal, luminal_mild, or luminal_moderate_or_severe; erosions_ulcers must be none, erosions, superficial_ulcer, or deep_ulcer (Travis 2013 UCEIS 0-8). 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

Mayo DAI — Sum four caller-assigned Schroeder 1987 ulcerative colitis disease-activity index items (each integer 0-3) and return the total (max 12). Does not return later remission or activity bands.
Truelove and Witts — Apply the Truelove and Witts 1955 ulcerative colitis severity table and return mild, moderately_severe, or severe from stools_per_day and five caller-assigned flags.
Travis criteria — Apply the Travis 1996 day-3 of intravenous corticosteroids rule for severe ulcerative colitis and return travis_high from stools_per_day and crp_mg_l.

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.