What does ICD-10 code Q83 mean?

ICD-10 code Q83 is the standardized code used for congenital malformations of breast in medical records and coding systems.

When is ICD-10 code Q83 used?

Doctors, hospitals, and insurers may use ICD-10 code Q83 when recording congenital malformations of breast in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code Q83 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code Q83: Congenital malformations of breast

Name: ICD-10 Code Q83: Congenital malformations of breast
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:30:09.181Z

Q83 is an ICD-10 diagnosis entry used to group records related to Congenital malformations of breast. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

When is it used?

May be used when a clinician documents congenital malformations of breast in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

17Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)

block

Q80-Q89Other congenital malformations

currentQ80-Q89

Official coding notes

Excludes2 (may code together if documented)

absence of pectoral muscle (Q79.8)
hypoplasia of breast (N64.82)
micromastia (N64.82)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Sibling codes

Q80Congenital ichthyosis Q81Epidermolysis bullosa Q82Other congenital malformations of skin Q84Other congenital malformations of integument Q85Phakomatoses, not elsewhere classified Q86Congenital malformation syndromes due to known exogenous causes, not elsewhere classified Q87Other specified congenital malformation syndromes affecting multiple systems Q89Other congenital malformations, not elsewhere classified

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

Q83

Replacement codes

Q83.0 — Congenital absence of breast with absent nippleQ83.1 — Accessory breastQ83.2 — Absent nippleQ83.3 — Accessory nippleQ83.8 — Other congenital malformations of breastQ83.9 — Congenital malformation of breast, unspecified

Common synonyms

Congenital malformations of breast

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.