ICD-10 N14.4
Billable / SpecificToxic nephropathy, not elsewhere classified
About ICD-10-CM N14.4
ICD-10-CM code N14.4 represents Toxic nephropathy, not elsewhere classified. This is a billable/specific code in the Genitourinary System chapter (block N14). The 2026 edition of ICD-10-CM N14.4 became effective on October 1, 2025.
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for N14.4
Local Coverage Determinations (LCDs) from CMS MACs that list N14.4 as a covered diagnosis.
Showing top 10 of 13 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing N14.4.
3 Medicare
CPT Codes Commonly Billed with N14.4
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 N14.4 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 |
|---|---|---|
| N14.4 | 58389 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To N14.4
Other codes in section N10-N16 (Renal tubulo-interstitial diseases).
ICD-10 N14.4, Billing FAQ
Is ICD-10 code N14.4 billable? +
Yes, N14.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does N14.4 map to? +
Per CMS GEMs, N14.4 maps to ICD-9 codes: 58389. 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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