ICD-10-CM 2027
ICD-10 code for breast hypertrophy
From the official ICD-10-CM alphabetic index entry “Hypertrophy, hypertrophic › breast”. Page updated September 29, 2026.
About coding breast hypertrophy
The ICD-10-CM code for breast hypertrophy is N62 (Hypertrophy of breast). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N62.
Don't report N62 together with the conditions in its Excludes1 note: breast engorgement of newborn (P83.4) and disproportion of reconstructed breast (N65.1).
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.
More specific breast hypertrophy codes (official index)
Don't confuse with (Excludes1 for N62)
Common questions about breast hypertrophy ICD-10 codes
What is the ICD-10 code for breast hypertrophy?
- N62 — Hypertrophy of breast. More specific codes apply when the documentation supports them: P83.4, N62, N62.
What is the ICD-10 code for newborn breast hypertrophy?
- P83.4 — Breast engorgement of newborn.
What is the ICD-10 code for senile breast hypertrophy?
- N62 — Hypertrophy of breast.
Is N62 billable?
- Yes. N62 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N62 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N62 as a principal diagnosis.
Is N62 a CC or MCC?
- No. N62 is neither a CC nor an MCC under MS-DRG v44.0.