N62 ICD-10-CM Code: Hypertrophy of breast
N62 is not a CMS-HCC payment code. MEAT criteria · RAF calculator · HCC Buddy coding tools
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FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Disorders of breast (N60-N65)
N62
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceHypertrophy 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.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Gynecomastia
- Hypertrophy of breast NOS
- Massive pubertal hypertrophy of breast
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for N62 in this effective period.
Related Child Codes
ICD-10-CM does not list child codes under N62 for this display context.
Includes
OfficialICD-10-CM does not list Includes notes for N62 in this effective period.
Excludes 1
Official- breast engorgement of newborn (P83.4)
- disproportion of reconstructed breast (N65.1)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for N62 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for N62 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for N62 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
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.
- Code
- N62
- Description
- Hypertrophy of breast
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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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

