MAGENT

Emergency · LIVE

CEDOCS

Compute the Weiss 2014 CEDOCS reduced-model score from caller-supplied critical-care patients, longest admitted-patient hours since admission, waiting-room count, ED patients, ED beds, and annual ED visits.

LIVE $0.005 USDC GET /api/calc/cedocs

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

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

What it computes

Compute the Weiss 2014 CEDOCS reduced-model score from caller-supplied critical-care patients, longest admitted-patient hours since admission, waiting-room count, ED patients, ED beds, and annual ED visits.

When to use

When an agent has the published snapshot counts, hours, and annual visits for a community ED and needs the Weiss 2014 reduced-model CEDOCS score, not a diversion or ambulance-bypass order.

When not to use

  • Not a medical device. Not a diversion or ambulance-bypass order.
  • magent does not count patients, beds, or wait times. Caller supplies the published numeric inputs.
  • Weiss 2014 reduced model for community EDs. Academic NEDOCS is a different tool.
  • The paper's outcome scale is 0-100. magent does not clamp the linear combination, does not double the score onto a 0-200 range, and does not invent 20/60/100 named class bands.
  • Pediatric-only EDs were not this model. Not a diagnosis of crowding-related harm.

Formula

cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3

Citation

Title
Evaluating community ED crowding: the Community ED Overcrowding Scale study
Authors
Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG
Source
Am J Emerg Med. 2014;32(11):1357-1363
DOI
10.1016/j.ajem.2014.08.035

Worked example

Paper spline worked visits (empty 20-bed community ED, 46000 annual visits)

Given: admit_time_hours=0critical_care_patients=0ed_beds=20ed_patients=0ed_visits_per_year=46000waiting_room_patients=0

  1. occupancy D = 0/20 = 0; A = 0; B = 0 h; C = 0; E = 46000
  2. 0.00126*46000 = 57.96; pmax(E-18811,0)=27189 and pmax(E-43012,0)=2988 enter the cubic spline; later knots are 0
  3. cedocs_score = -30.39 + 57.96 minus the first cubic plus the second cubic, 1 decimal (paper 0-100 scale, unclamped)

Busy 20-bed community ED at the same annual volume

Given: admit_time_hours=8critical_care_patients=4ed_beds=20ed_patients=40ed_visits_per_year=46000waiting_room_patients=15

  1. occupancy D = 40/20 = 2.0; A = 4; B = 8 h; C = 15; E = 46000
  2. cedocs_score adds 3.00*4 + 0.53*8 + 1.16*15 + 20.66*2.0 to the empty-ED spline intercept, 1 decimal

Also searched as

  • CEDOCS
  • Community ED Overcrowding Scale
  • community emergency department crowding
  • Weiss CEDOCS
  • CEDOCS reduced model
  • community ED overcrowding
  • Weiss 2014 crowding

Try

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

/api/calc/cedocs?critical_care_patients=0&admit_time_hours=0&waiting_room_patients=0&ed_patients=0&ed_beds=20&ed_visits_per_year=46000

Full URL: https://api.magentlab.com/api/calc/cedocs?critical_care_patients=0&admit_time_hours=0&waiting_room_patients=0&ed_patients=0&ed_beds=20&ed_visits_per_year=46000

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/cedocs?critical_care_patients=0&admit_time_hours=0&waiting_room_patients=0&ed_patients=0&ed_beds=20&ed_visits_per_year=46000"

Parameters

Name Type Required Description
critical_care_patients integer required Critical-care patients in the ED (integer 0-20). Weiss 2014 reduced-model A. magent does not count patients.
admit_time_hours number required Hours the longest-waiting admitted patient has been in the ED since admission (0-120). Weiss 2014 reduced-model B. Not time since registration. magent does not measure wait times.
waiting_room_patients integer required Patients in the waiting room (integer 0-200). Weiss 2014 reduced-model C. magent does not count waiting-room patients.
ed_patients integer required Total patients in the ED (integer 0-200). Weiss 2014 occupancy numerator (beds plus doubled-up or hallway). magent does not count patients.
ed_beds integer required Number of ED beds (integer 1-300). Weiss 2014 occupancy denominator. magent does not count beds.
ed_visits_per_year integer required ED visits per year (integer 1000-200000). Weiss 2014 reduced-model E with restricted cubic spline knots at 18811, 43012, 49466, and 67273. The paper's spline worked example uses 46000. magent does not count visits.

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/cedocs 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": [
    {
      "admit_time_hours": "0",
      "critical_care_patients": "0",
      "ed_beds": "20",
      "ed_patients": "0",
      "ed_visits_per_year": "46000",
      "waiting_room_patients": "0"
    },
    {
      "admit_time_hours": "0",
      "critical_care_patients": "0",
      "ed_beds": "20",
      "ed_patients": "0",
      "ed_visits_per_year": "46000",
      "waiting_room_patients": "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/cedocs",
  "items": [
    {
      "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": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
        "doi": "10.1016/j.ajem.2014.08.035",
        "id": "weiss-2014",
        "pmid": "25234796",
        "source": "Am J Emerg Med. 2014;32(11):1357-1363",
        "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
      },
      "formula": "cedocs",
      "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
      "admit_time_hours": 0.0,
      "cedocs_score": 5.5,
      "critical_care_patients": 0,
      "ed_beds": 20,
      "ed_patients": 0,
      "ed_visits_per_year": 46000,
      "occupancy": 0.0,
      "waiting_room_patients": 0
    },
    {
      "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": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
        "doi": "10.1016/j.ajem.2014.08.035",
        "id": "weiss-2014",
        "pmid": "25234796",
        "source": "Am J Emerg Med. 2014;32(11):1357-1363",
        "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
      },
      "formula": "cedocs",
      "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
      "admit_time_hours": 0.0,
      "cedocs_score": 5.5,
      "critical_care_patients": 0,
      "ed_beds": 20,
      "ed_patients": 0,
      "ed_visits_per_year": 46000,
      "occupancy": 0.0,
      "waiting_room_patients": 0
    }
  ]
}

Response

Field Type Description
formula string cedocs
formula_expression string Weiss 2014 reduced-model expression with annual-visit cubic spline
critical_care_patients integer Caller-supplied critical-care patients in the ED (A)
admit_time_hours number Caller-supplied longest admitted-patient hours since admission (B)
waiting_room_patients integer Caller-supplied waiting-room count (C)
ed_patients integer Caller-supplied total ED patients used as the occupancy numerator
ed_beds integer Caller-supplied ED beds used as the occupancy denominator
ed_visits_per_year integer Caller-supplied annual ED visits (E)
occupancy number ed_patients / ed_beds, 4 decimals (Weiss 2014 D)
cedocs_score number Weiss 2014 reduced-model score, 1 decimal. The paper's outcome scale is 0-100; the linear combination is not clamped.
citation object Weiss 2014 Am J Emerg Med citation
disclaimer string Not-a-device notice

Example JSON

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

{
  "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": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
    "doi": "10.1016/j.ajem.2014.08.035",
    "id": "weiss-2014",
    "pmid": "25234796",
    "source": "Am J Emerg Med. 2014;32(11):1357-1363",
    "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
  },
  "formula": "cedocs",
  "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
  "admit_time_hours": 0.0,
  "cedocs_score": 5.5,
  "critical_care_patients": 0,
  "ed_beds": 20,
  "ed_patients": 0,
  "ed_visits_per_year": 46000,
  "occupancy": 0.0,
  "waiting_room_patients": 0
}

Client errors (HTTP 400)

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

HTTP Code When
400 invalid_cedocs CEDOCS needs Weiss 2014 community ED occupancy, wait, and annual-visit inputs in published ranges. 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

  • NEDOCS — Compute the Weiss 2004 NEDOCS reduced five-variable score from caller-supplied ED patients, ED beds, boarding patients, hospital beds, respirators, longest admitted-patient hours, and last-called registration-to-bed hours, and return the published ≥100 overcrowding cutoff.

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.