Q83.9: Congenital malformation of breast, unspecified
Q83.9 is the billable ICD-10-CM diagnosis code for Congenital malformation of breast, unspecified. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code Q83.9?
Q83.9 is the ICD-10-CM diagnosis code for Congenital malformation of breast, unspecified. It belongs to category Q83 (Congenital malformations of breast).
Is Q83.9 a billable code?
Yes. Q83.9 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does Q83.9 belong to?
Q83.9 is part of ICD-10-CM category Q83 — Congenital malformations of breast, which has 12 billable codes.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free