Q84.5 is the authoritative medical code for Enlarged and hypertrophic nails. This classification is used in medical billing and clinical recording to specify the clinical criteria for enlarged and hypertrophic nails (ICD-10-CM Q84.5), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Enlarged and hypertrophic nails is a billable ICD-10-CM diagnosis code Q84.5. Inclusion terms: Congenital onychauxis; Pachyonychia.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Q84.5 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Congenital onychauxis
- Pachyonychia
Frequently Asked Questions (FAQ) & Clinical Guidance
What conditions are included under Q84.5?
Enlarged and hypertrophic nails includes: Congenital onychauxis; Pachyonychia.
Codes in This Family (9)
Official ICD-10-CM classifications in the same code family as Q84.5, with their registry titles.
- Q84 — Other congenital malformations of integument
- Q84.0 — Congenital alopecia
- Q84.1 — Congenital morphological disturbances of hair, not elsewhere classified
- Q84.2 — Other congenital malformations of hair
- Q84.3 — Anonychia
- Q84.4 — Congenital leukonychia
- Q84.6 — Other congenital malformations of nails
- Q84.8 — Other specified congenital malformations of integument
- Q84.9 — Congenital malformation of integument, unspecified
Indexed Clinical Terms (4)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Hypertrophy, hypertrophic, nail, congenital
- Onychauxis, congenital
- Pachyonychia (congenital)
- Thickening, nail, congenital
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Q87.5
Other congenital malformation syndromes with other skeletal changes