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R40.2

Non-billable

Coma

R40.2 is the ICD-10-CM code for Coma. It is a non-billable category code — use a more specific child code such as R40.20 for billing.

Status
Header (non-billable)
Chapter
R00-R99
Parent
R40
Subcodes
6
Edition
FY2026

R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Code first

  • •any associated:
  • •fracture of skull (S02.-)
  • •intracranial injury (S06.-)

Notes

  • •One code from each subcategory, R40.21-R40.23, is required to complete the coma scale

Frequently asked questions

What is ICD-10 code R40.2?
R40.2 is the ICD-10-CM code for "Coma". It falls under R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Is R40.2 a billable code?
No — R40.2 is a non-billable header code. Use a more specific child code (such as R40.20) for billing.
What are the subcodes of R40.2?
R40.2 has 6 more specific child codes, including R40.20, R40.21, R40.22.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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