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N62

Billable

Hypertrophy of breast

Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)

Is N62 an HCC code?

No. N62 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

N62 is the ICD-10-CM diagnosis code for hypertrophy of breast. Abnormal enlargement of one or both breasts, which may be caused by hormonal changes, medications, or other factors. This is a benign condition but may cause physical discomfort. N62 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering disorders of breast (n60-n65).

N62 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Document laterality (unilateral or bilateral) and any associated symptoms such as pain or tenderness.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N62 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • Document laterality (unilateral or bilateral) and any associated symptoms such as pain or tenderness
  • Distinguish from gynecomastia (male breast enlargement) which has separate coding; N62 is typically used for female breast hypertrophy

Excludes 1 — Do NOT code together

  • breast engorgement of newborn (P83.4)
  • disproportion of reconstructed breast (N65.1)

Code Hierarchy

N62Hypertrophy of breast
N62Hypertrophy of breast

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