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N64.82

Billable

Hypoplasia of breast

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

What This Code Means

Underdevelopment or small size of breast tissue, which may be congenital or acquired.

Coding Tips

  • •Distinguish between congenital hypoplasia and acquired hypoplasia from other causes
  • •Document whether this is unilateral or bilateral for complete coding

Excludes 1 — Do NOT code together

  • congenital absence of breast (Q83.0)
  • hypoplasia of native breast in relation to reconstructed breast (N65.1)

Code Hierarchy

└N64Other disorders of breast└N64.8Other specified disorders of breast└N64.82Hypoplasia of breast
└N64.82Hypoplasia of breast

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