R40.2442: Other coma, without documented Glasgow coma scale score, or with partial score reported, at arrival to emergency department
R40.2442 is the billable ICD-10-CM diagnosis code for Other coma, without documented Glasgow coma scale score, or with partial score reported, at arrival to emergency department. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code R40.2442?
R40.2442 is the ICD-10-CM diagnosis code for Other coma, without documented Glasgow coma scale score, or with partial score reported, at arrival to emergency department. It belongs to category R40 (Somnolence, stupor and coma).
Is R40.2442 a billable code?
Yes. R40.2442 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does R40.2442 belong to?
R40.2442 is part of ICD-10-CM category R40 — Somnolence, stupor and coma, which has 202 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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