MCMCB Pro
N60.12

N60.12Diffuse cystic mastopathy of left breast

Billable / specific codeICD-10-CMleft

N60.12 is a billable, specific ICD-10-CM code for diffuse cystic mastopathy of left breast. It is valid for submission on a claim.

Risk adjustment

N60.12 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

N60.12 is named in 8 Medicare coverage policies 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52453Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs
  • A52849Billing and Coding: Breast Imaging: Breast Echography (Sonography)/Breast MRI/Ductography
  • A56448Billing and Coding: Breast Imaging Mammography/Breast Echography (Sonography)/Breast MRI/Ductography
  • A56448Billing and Coding: Breast Imaging Mammography/Breast Echography (Sonography)/Breast MRI/Ductography

Related codes at this level

Codes that share N60.1. If N60.12 is not quite right, the correct code is usually one of these.

Questions about N60.12

Is N60.12 a billable ICD-10-CM code?
Yes. N60.12 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N60.12 sit in the tabular list?
Diseases of the genitourinary system (N00-N99), in the block Disorders of breast (N60-N65).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.