ICD-10 R94.138
Billable / SpecificAbnormal results of other function studies of peripheral nervous system
About ICD-10-CM R94.138
ICD-10-CM code R94.138 represents Abnormal results of other function studies of peripheral nervous system. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R94). The 2026 edition of ICD-10-CM R94.138 became effective on October 1, 2025.
Medicare LCD Coverage for R94.138
Local Coverage Determinations (LCDs) from CMS MACs that list R94.138 as a covered diagnosis.
Showing top 10 of 39 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R94.138.
2 Medicare
CPT Codes Commonly Billed with R94.138
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 R94.138 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 |
|---|---|---|
| R94.138 | 79419 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R94.138
Other codes in section R90-R94 (Abnormal findings on diagnostic imaging and in function studies, without diagnosis).
ICD-10 R94.138, Billing FAQ
Is ICD-10 code R94.138 billable? +
Yes, R94.138 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does R94.138 map to? +
Per CMS GEMs, R94.138 maps to ICD-9 codes: 79419. 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 May 31, 2026.
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