ICD-10-CM 2027
ICD-10 code for breast ptosis
From the official ICD-10-CM alphabetic index entry “Ptosis › breast”. Page updated September 29, 2026.
About coding breast ptosis
The ICD-10-CM code for breast ptosis is N64.81 (Ptosis of breast).
Within N64.8 (other specified disorders of breast), N64.81 is specifically for ptosis of breast. Related codes cover hypoplasia of breast (N64.82) and other specified disorders of breast (N64.89).
Don't report N64.81 together with the conditions in its Excludes1 note: ptosis of native breast in relation to 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.
Don't confuse with (Excludes1 for N64.81)
- ptosis of native breast in relation to reconstructed breast (N65.1)
Common questions about breast ptosis ICD-10 codes
What is the ICD-10 code for breast ptosis?
- N64.81 — Ptosis of breast.
Is N64.81 billable?
- Yes. N64.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N64.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N64.81 as a principal diagnosis.
Is N64.81 a CC or MCC?
- No. N64.81 is neither a CC nor an MCC under MS-DRG v44.0.