ICD-10 R41.840
Billable / SpecificAttention and concentration deficit
About ICD-10-CM R41.840
ICD-10-CM code R41.840 represents Attention and concentration deficit. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R41). The 2026 edition of ICD-10-CM R41.840 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with R41.840. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- attention-deficit hyperactivity disorders (F90.-)
Medicare LCD Coverage for R41.840
Local Coverage Determinations (LCDs) from CMS MACs that list R41.840 as a covered diagnosis.
Showing top 10 of 372 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R41.840.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with R41.840
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.
Convert R41.840 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R41.840 | 79951 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R41.840
Other codes in section R40-R46 (Symptoms and signs involving cognition, perception, emotional state and behavior).
ICD-10 R41.840, Billing FAQ
Is ICD-10 code R41.840 billable? +
Yes, R41.840 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for R41.840? +
Type 1 Excludes (never code together with R41.840): attention-deficit hyperactivity disorders (F90.-)
What ICD-9 codes does R41.840 map to? +
Per CMS GEMs, R41.840 maps to ICD-9 codes: 79951. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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