Q83.0

Congenital absence of breast with absent nipple

FY2027Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders/Q80–Q89 Other congenital malformations

BillableComplete code, valid to report

Q83.0 (also written Q830) is a billable ICD-10-CM diagnosis code for congenital absence of breast with absent nipple. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 6 codes in category Q83 (Congenital malformations of breast). The Alphabetic Index lists it under 2 entries. Its coding notes include 4 Excludes2 entries.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.

Guidelines I.C.17Congenital malformations and genetic disordersRead the official text

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from Q83 Congenital malformations of breast
Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • inborn errors of metabolism (E70-E88)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • Codes from this chapter are not for use on maternal records

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 2 entries