ICD-10 R94.4
Billable / SpecificAbnormal results of kidney function studies
About ICD-10-CM R94.4
ICD-10-CM code R94.4 represents Abnormal results of kidney function studies. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R94). The 2026 edition of ICD-10-CM R94.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under R94.4. Per CMS ICD-10-CM Tabular 2026.
- Abnormal renal function test
Medicare LCD Coverage for R94.4
Local Coverage Determinations (LCDs) from CMS MACs that list R94.4 as a covered diagnosis.
Showing top 10 of 62 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R94.4.
5 Medicare
CPT Codes Commonly Billed with R94.4
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 R94.4 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 |
|---|---|---|
| R94.4 | 7944 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R94.4
Other codes in section R90-R94 (Abnormal findings on diagnostic imaging and in function studies, without diagnosis).
ICD-10 R94.4, Billing FAQ
Is ICD-10 code R94.4 billable? +
Yes, R94.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to R94.4? +
ICD-10 R94.4 includes: Abnormal renal function test.
What ICD-9 codes does R94.4 map to? +
Per CMS GEMs, R94.4 maps to ICD-9 codes: 7944. Useful for legacy data review and historical claim analysis.
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