ICD-10 R40.231
Non-Billable HeaderComa scale, best motor response, none
About ICD-10-CM R40.231
ICD-10-CM code R40.231 represents Coma scale, best motor response, none. This is a non-billable header code in the Symptoms, Signs, and Abnormal Findings chapter (block R40). The 2026 edition of ICD-10-CM R40.231 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under R40.231. Per CMS ICD-10-CM Tabular 2026.
- Coma scale motor score of 1
Medicare LCD Coverage for R40.231
Local Coverage Determinations (LCDs) from CMS MACs that list R40.231 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R40.231.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but R40.231 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with R40.231
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To R40.231
Other codes in section R40-R46 (Symptoms and signs involving cognition, perception, emotional state and behavior).
ICD-10 R40.231, Billing FAQ
Is ICD-10 code R40.231 billable? +
No, R40.231 is a non-billable header code. Use a more specific child code from block R40 when submitting claims.
What other names or terms map to R40.231? +
ICD-10 R40.231 includes: Coma scale motor score of 1.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team