ICD-9-CM diagnosis code (retired)
611.72 — Lump or mass in breast
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 611.72
611.72 is an ICD-9-CM diagnosis code for lump or mass in breast. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 15 ICD-10-CM codes, such as N63.0 (Unspecified lump in unspecified breast), N63.10 (Unspecified lump in the right breast, unspecified quadrant) and N63.11 (Unspecified lump in the right breast, upper outer quadrant). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- N63.0Unspecified lump in unspecified breastapproximate
- N63.10Unspecified lump in the right breast, unspecified quadrantapproximate
- N63.11Unspecified lump in the right breast, upper outer quadrantapproximate
- N63.12Unspecified lump in the right breast, upper inner quadrantapproximate
- N63.13Unspecified lump in the right breast, lower outer quadrantapproximate
- N63.14Unspecified lump in the right breast, lower inner quadrantapproximate
- N63.20Unspecified lump in the left breast, unspecified quadrantapproximate
- N63.21Unspecified lump in the left breast, upper outer quadrantapproximate
- N63.22Unspecified lump in the left breast, upper inner quadrantapproximate
- N63.23Unspecified lump in the left breast, lower outer quadrantapproximate
- N63.24Unspecified lump in the left breast, lower inner quadrantapproximate
- N63.31Unspecified lump in axillary tail of the right breastapproximate
- N63.32Unspecified lump in axillary tail of the left breastapproximate
- N63.41Unspecified lump in right breast, subareolarapproximate
- N63.42Unspecified lump in left breast, subareolarapproximate
Common questions about 611.72
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.