ICD-10 Q84.6
Billable / SpecificOther congenital malformations of nails
About ICD-10-CM Q84.6
ICD-10-CM code Q84.6 represents Other congenital malformations of nails. This is a billable/specific code in the Congenital Malformations chapter (block Q84). The 2026 edition of ICD-10-CM Q84.6 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Q84.6. Per CMS ICD-10-CM Tabular 2026.
- Congenital clubnail
- Congenital koilonychia
- Congenital malformation of nail NOS
Medicare LCD Coverage for Q84.6
Local Coverage Determinations (LCDs) from CMS MACs that list Q84.6 as a covered diagnosis.
Showing top 10 of 12 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Q84.6.
3 Medicare
CPT Codes Commonly Billed with Q84.6
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
Convert Q84.6 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 |
|---|---|---|
| Q84.6 | 7575 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Q84.6
Other codes in section Q80-Q89 (Other congenital malformations).
ICD-10 Q84.6, Billing FAQ
Is ICD-10 code Q84.6 billable? +
Yes, Q84.6 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 Q84.6? +
ICD-10 Q84.6 includes: Congenital clubnail; Congenital koilonychia; Congenital malformation of nail NOS.
What CPT codes are commonly billed with Q84.6? +
Procedures frequently paired with Q84.6 include: 11732, 11765, 11750.
What ICD-9 codes does Q84.6 map to? +
Per CMS GEMs, Q84.6 maps to ICD-9 codes: 7575. 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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