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Rost 2008 FUNC Score Calculator
x402
Rost 2008 FUNC Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes the Rost 2008 FUNC score (0–11) for predicting functional outcome after primary intracerebral hemorrhage from caller-supplied volume, age, ICH location, GCS, and pre-ICH cognitive impairment.
Price / call$0.005
Success—
StatusUnknown
How this service works
Rost 2008 FUNC score (0-11) after primary ICH from caller-assigned volume, age, location (lobar/deep/infratentorial), GCS, and pre-ICH cognitive impairment. Volume <30 mL scores 4, 30-60 scores 2, >60 scores 0; age <70 scores 2, 70-79 scores 1, >=80 scores 0; lobar 2, deep 1, infratentorial 0; GCS >=9 scores 2, <=8 scores 0; cognitive impairment absent scores 1. Companion to the Hemphill ICH Score, not a replacement. Not a diagnosis or withdrawal-of-care protocol. magent does not read CT.
Output
Returns the total FUNC score (integer 0–11) derived from the five input components: ICH volume (<30 mL = 4, 30–60 mL = 2, >60 mL = 0), age (<70 = 2, 70–79 = 1, ≥80 = 0), location (lobar = 2, deep = 1, infratentorial = 0), GCS (≥9 = 2, ≤8 = 0), and pre-ICH cognitive impairment (absent = 1, present = 0). Higher scores correlate with greater likelihood of functional independence at 90 days. Does not provide diagnostic conclusions or withdrawal-of-care guidance.
Example use cases
ICU prognostication after primary ICH
“My patient is 68 years old with a lobar intracerebral hemorrhage measuring 25 mL, a GCS of 13, and no history of cognitive impairment — can you give me the FUNC score?”
Comparing outcomes across ICH severity tiers
“I have three ICH patients: first is 82 years old, infratentorial bleed at 65 mL, GCS 6, with prior cognitive impairment; second is 61 years old, deep bleed at 35 mL, GCS 10, no cognitive impairment; third is 75 years old, lobar bleed at 20 mL, GCS 14, no cognitive impairment. What are their FUNC scores?”
Neurology consult documentation support
“For our neurology note, compute the FUNC score for a 79-year-old with a deep ICH of 55 mL, GCS of 8, and documented pre-existing cognitive impairment.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/func_scoreWhen to prefer
Use this endpoint when you need a fast, rule-based computation of the Rost 2008 FUNC score and all five parameters (volume, age, ICH location, GCS, cognitive impairment status) have already been clinically assessed and assigned by the caller. Prefer this over manual lookup when integrating ICH prognostication into an automated clinical workflow or EHR summary. This is a companion to the Hemphill ICH Score (available as a sibling endpoint) and is not a replacement for it. Do not use this endpoint to derive clinical inputs — it does not read CT scans, measure ICH volume, or compute GCS from eye/verbal/motor subscores.
Side effects
- Missing required parameter (ich_volume_ml, age, location, gcs, or pre_ich_cognitive_impairment) returns an error
- ICH volume outside 0.1–300 mL range may be rejected or return unexpected results
- Age outside 18–120 range may cause validation failure
- GCS outside 3–15 returns an error
- Invalid location string (not 'lobar', 'deep', or 'infratentorial') returns a validation error
- Payment failure (insufficient USDC balance for x402 protocol) prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/func_score",
"count": 2,
"items": [
{
"gcs": 14,
"score": 11,
"formula": "func_score",
"citation": {
"id": "rost-2008",
"doi": "10.1161/STROKEAHA.107.512202",
"pmid": "18556582",
"title": "Prediction of functional outcome in patients with primary intracerebral hemorrhage: the FUNC score",
"source": "Stroke. 2008;39(8):2304-2309",
"authors": "Rost NS, Smith EE, Chang Y, et al."
},
"location": "lobar",
"age_years": 60,
"func_band": "11",
"max_score": 11,
"components": [
{
"value": 15,
"factor": "ich_volume_ml",
"points": 4,
"present": true
},
{
"value": 60,
"factor": "age",
"points": 2,
"present": true
},
{
"value": "lobar",
"factor": "location",
"points": 2,
"present": true
},
{
"value": 14,
"factor": "gcs",
"points": 2,
"present": true
},
{
"value": false,
"factor": "pre_ich_cognitive_impairment",
"points": 1,
"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.",
"ich_volume_ml": 15,
"formula_expression": "FUNC = ich_volume + age + location + gcs + pre_ich_cognitive_impairment; volume <30 → 4, 30-60 → 2, >60 → 0; age <70 → 2, 70-79 → 1, >=80 → 0; lobar 2, deep 1, infratentorial 0; GCS >=9 → 2, <=8 → 0; pre-ICH cognitive impairment absent 1, present 0; max 11",
"pre_ich_cognitive_impairment": false
},
{
"gcs": 14,
"score": 11,
"formula": "func_score",
"citation": {
"id": "rost-2008",
"doi": "10.1161/STROKEAHA.107.512202",
"pmid": "18556582",
"title": "Prediction of functional outcome in patients with primary intracerebral hemorrhage: the FUNC score",
"source": "Stroke. 2008;39(8):2304-2309",
"authors": "Rost NS, Smith EE, Chang Y, et al."
},
"location": "lobar",
"age_years": 60,
"func_band": "11",
"max_score": 11,
"components": [
{
"value": 15,
"factor": "ich_volume_ml",
"points": 4,
"present": true
},
{
"value": 60,
"factor": "age",
"points": 2,
"present": true
},
{
"value": "lobar",
"factor": "location",
"points": 2,
"present": true
},
{
"value": 14,
"factor": "gcs",
"points": 2,
"present": true
},
{
"value": false,
"factor": "pre_ich_cognitive_impairment",
"points": 1,
"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.",
"ich_volume_ml": 15,
"formula_expression": "FUNC = ich_volume + age + location + gcs + pre_ich_cognitive_impairment; volume <30 → 4, 30-60 → 2, >60 → 0; age <70 → 2, 70-79 → 1, >=80 → 0; lobar 2, deep 1, infratentorial 0; GCS >=9 → 2, <=8 → 0; pre-ICH cognitive impairment absent 1, present 0; max 11",
"pre_ich_cognitive_impairment": false
}
]
}
}Tags
x402
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