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magent ICH Score Calculator (Hemphill 2001)
x402
magent ICH Score Calculator (Hemphill 2001) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Computes the Hemphill 2001 ICH Score (0–6) from caller-supplied GCS, age, infratentorial origin, ICH volume, and intraventricular hemorrhage status.
Price / call$0.005
Success—
StatusUnknown
How this service works
Hemphill 2001 ICH Score from caller-assigned GCS, age, infratentorial origin, ICH volume (mL), and IVH; max 6. GCS 3-4 scores 2, 5-12 scores 1, 13-15 scores 0; age ≥80, volume ≥30 mL, infratentorial origin, and IVH score 1 each. Deterministic published score with citation; not a diagnosis or withdrawal-of-care protocol. magent does not read CT. Not FUNC and not ICH-GS.
Output
Returns the total ICH Score (integer 0–6) with component-level point contributions for each of the five inputs (GCS tier, age ≥80, volume ≥30 mL, infratentorial origin, IVH), along with a citation to Hemphill 2001 and a disclaimer that the result is not a diagnosis or withdrawal-of-care protocol.
Example use cases
ICU triage for ICH patient
“My patient is 85 years old, has a GCS of 4, a 55 mL supratentorial bleed, and there's intraventricular hemorrhage on CT — can you calculate the Hemphill ICH score?”
Neurology handoff documentation
“For the handoff note, I need the ICH score: patient is 72, GCS is 14, ICH volume is 18 mL, origin is infratentorial, and no IVH was seen.”
ED risk stratification for small bleed
“Calculate the ICH score for a 65-year-old ED patient with a GCS of 15, a 12 mL bleed, supratentorial origin, and no intraventricular hemorrhage.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/ich_score?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, deterministic, citable Hemphill 2001 ICH Score and already have the five required clinical values (GCS, age, ICH volume, infratentorial origin, IVH) assigned by a clinician. Prefer this over manual lookup tables when automating clinical documentation, building stroke decision-support workflows, or needing a machine-readable score with provenance. Do not use for the FUNC score, ICH-GS, or any score requiring raw CT image analysis — this endpoint does not read imaging.
Side effects
- Missing required query parameters (gcs, age, infratentorial_origin, ich_volume_ml, ivh) returns a validation error
- GCS value outside 3–15 range may return an error or undefined behavior
- ICH volume outside 0.1–300 mL range may be rejected
- Age outside 18–120 range may be rejected
- Non-integer GCS or age values may fail schema validation
- Boolean fields passed as strings (e.g. 'true' vs true) may cause parse errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/ich_score",
"count": 2,
"items": [
{
"gcs": 15,
"score": 0,
"formula": "ich_score",
"citation": {
"id": "hemphill-2001",
"doi": "10.1161/01.STR.32.4.891",
"title": "The ICH Score: a simple, reliable grading scale for intracerebral hemorrhage",
"source": "Stroke. 2001;32(4):891-897",
"authors": "Hemphill JC 3rd, Bonovich DC, Besmertis L, Manley GT, Johnston SC"
},
"age_years": 70,
"max_score": 6,
"components": [
{
"value": 15,
"factor": "gcs",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "age",
"points": 0,
"present": false
},
{
"factor": "infratentorial_origin",
"points": 0,
"present": false
},
{
"value": 10,
"factor": "ich_volume_ml",
"points": 0,
"present": false
},
{
"factor": "ivh",
"points": 0,
"present": false
}
],
"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": 10,
"formula_expression": "ICH Score = gcs + age_ge_80 + infratentorial_origin + ich_volume_ge_30_ml + ivh; GCS 3-4 → 2, 5-12 → 1, 13-15 → 0; age >=80 1; infratentorial origin 1; volume >=30 mL 1; IVH 1; max 6"
},
{
"gcs": 15,
"score": 0,
"formula": "ich_score",
"citation": {
"id": "hemphill-2001",
"doi": "10.1161/01.STR.32.4.891",
"title": "The ICH Score: a simple, reliable grading scale for intracerebral hemorrhage",
"source": "Stroke. 2001;32(4):891-897",
"authors": "Hemphill JC 3rd, Bonovich DC, Besmertis L, Manley GT, Johnston SC"
},
"age_years": 70,
"max_score": 6,
"components": [
{
"value": 15,
"factor": "gcs",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "age",
"points": 0,
"present": false
},
{
"factor": "infratentorial_origin",
"points": 0,
"present": false
},
{
"value": 10,
"factor": "ich_volume_ml",
"points": 0,
"present": false
},
{
"factor": "ivh",
"points": 0,
"present": false
}
],
"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": 10,
"formula_expression": "ICH Score = gcs + age_ge_80 + infratentorial_origin + ich_volume_ge_30_ml + ivh; GCS 3-4 → 2, 5-12 → 1, 13-15 → 0; age >=80 1; infratentorial origin 1; volume >=30 mL 1; IVH 1; max 6"
}
]
}
}Tags
x402
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