R40.222
⚠ Non-billable (Header)Coma scale, best verbal response, incomprehensible words
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Also Known As
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • neonatal coma (P91.5)
- • somnolence, stupor and coma in diabetes (E08-E13)
- • somnolence, stupor and coma in hepatic failure (K72.-)
- • somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)
📋 Code Instructions
inherited- • Code first: any associated:
- • Code first: fracture of skull (S02.-)
- • Code first: intracranial injury (S06.-)
Child Codes (5)
Clinical Description
ICD-10-CM code R40.222 represents coma scale, best verbal response, incomprehensible words. This code falls under the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 7-character code at the 6th level of specificity. There are 5 more specific child codes under R40.222. Coders should note that R40.222 has 4 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code R40.222?
ICD-10-CM code R40.222 is "Coma scale, best verbal response, incomprehensible words". It belongs to the category: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).
Is R40.222 a billable ICD-10 code?
No, R40.222 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with R40.222?
R40.222 has 4 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in R40.22
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)