N64.82

N64.82: Hypoplasia of breast

Billable / specific codeICD-10-CM

N64.82 is a billable, specific ICD-10-CM code for hypoplasia of breast. It is valid for submission on a claim.

Check N64.82 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Micromastia

Excludes2 inherited from the categories above N64.82

Not part of this code, but both may be coded when both are present.

Written on N64: Other disorders of breast

mechanical complication of breast prosthesis and implant (T85.4-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Micromastia
Hypoplasia, hypoplastic›breast(areola)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under N64.8