ICD-10-CM 2027
ICD-10 code for nipple agenesis
From the official ICD-10-CM alphabetic index entry “Agenesis › nipple”. Page updated September 29, 2026.
About coding nipple agenesis
The ICD-10-CM code for nipple agenesis is Q83.2 (Absent nipple).
Within Q83 (congenital malformations of breast), Q83.2 is specifically for absent nipple. Related codes cover congenital absence of breast with absent nipple (Q83.0), accessory breast (Q83.1), accessory nipple (Q83.3), other congenital malformations of breast (Q83.8) and congenital malformation of breast, unspecified (Q83.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 600 (Non-Malignant Breast Disorders with CC/MCC, relative weight 0.9975) and DRG 601 (Non-Malignant Breast Disorders without CC/MCC, relative weight 0.6017), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about nipple agenesis ICD-10 codes
What is the ICD-10 code for nipple agenesis?
- Q83.2 — Absent nipple.
Is Q83.2 billable?
- Yes. Q83.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q83.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q83.2 as a principal diagnosis.
Is Q83.2 a CC or MCC?
- No. Q83.2 is neither a CC nor an MCC under MS-DRG v44.0.