Q84.6 – Other congenital malformations of nails
ICD-10-CM 2027 diagnosis code · Other congenital malformations
ICD-10-CM code
Q84.6
- Code
Q84.6(claims format:Q846)- Description
- Other congenital malformations of nails
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q80-Q89 Other congenital malformations
- Parent codes
- Q84
Notes for Q84.6
Applicable to:
- Congenital clubnail
- Congenital koilonychia
- Congenital malformation of nail NOS
Index terms for Q84.6
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Eponychia
- Polyunguia
- Platyonychia
- Malformation, nail
- Clubnail, congenital
- Horn, nail, congenital
- Spoon nail, congenital
- Koilonychia, congenital
- Anomaly, anomalous, nail
- Spading nail, congenital
- Onychorrhexis, congenital
- Furrowed, nail, congenital
- Brittle, nails, congenital
- Egg shell nails, congenital
- Deformity, nail, congenital
- Onychodystrophy, congenital
- Atrophia, unguium, congenita
- Malposition, congenital, nail
- Hypoplasia, hypoplastic, nail
- Persistence, persistent, nail
- Displacement, displaced, nail
- Fragilitas, unguium, congenital
- Remnant, fingernail, congenital
- Dystrophy, dystrophia, nail, congenital
- Dystrophy, dystrophia, unguium, congenital
Related codes in Q84
- Q84.0 – Congenital alopeciaBillable
- Q84.1 – Congenital morphological disturbances of hair, not elsewhere classifiedBillable
- Q84.2 – Other congenital malformations of hairBillable
- Q84.3 – AnonychiaBillable
- Q84.4 – Congenital leukonychiaBillable
- Q84.5 – Enlarged and hypertrophic nailsBillable
- Q84.8 – Other specified congenital malformations of integumentBillable
- Q84.9 – Congenital malformation of integument, unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q84.6?
Q84.6 is the ICD-10-CM code for other congenital malformations of nails, in the block Q80-Q89 (Other congenital malformations).
Is Q84.6 a billable code?
Yes. Q84.6 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q84.6 belong to?
It belongs to category Q84 – Other congenital malformations of integument.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.