Congenital malformations of breast (Q83) ICD-10-CM
The Q83 code range covers congenital malformations of breast with 7 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the Q83 Range 7 codes · 6 billable
About the Q83 Code Range
Some breast or nipple differences are present at birth, including absent or extra breasts or nipples.
Within Q83, Q83.0 describes an absent breast and nipple, while Q83.2 describes an absent nipple. Q83.1 identifies an extra breast, and Q83.3 identifies an extra nipple. Q83.8 identifies other breast malformations present at birth; Q83.9 leaves the malformation unspecified.
Questions About This Page
How many billable codes are in the Q83 range?
Of the 7 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Q83 range classify?
The range classifies congenital malformations of breast. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
