ICD-9-CM procedure code (retired)
85.12 — Open biopsy of breast
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 85.12
85.12 is an ICD-9-CM procedure code for open biopsy of breast. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 11 ICD-10-PCS codes, such as 0H9T0ZX (Drainage of Right Breast, Open Approach, Diagnostic), 0H9U0ZX (Drainage of Left Breast, Open Approach, Diagnostic) and 0H9V0ZX (Drainage of Bilateral Breast, Open Approach, Diagnostic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0H9T0ZXDrainage of Right Breast, Open Approach, Diagnosticapproximate
- 0H9U0ZXDrainage of Left Breast, Open Approach, Diagnosticapproximate
- 0H9V0ZXDrainage of Bilateral Breast, Open Approach, Diagnosticapproximate
- 0H9W0ZXDrainage of Right Nipple, Open Approach, Diagnosticapproximate
- 0H9X0ZXDrainage of Left Nipple, Open Approach, Diagnosticapproximate
- 0HBT0ZXExcision of Right Breast, Open Approach, Diagnosticapproximate
- 0HBU0ZXExcision of Left Breast, Open Approach, Diagnosticapproximate
- 0HBV0ZXExcision of Bilateral Breast, Open Approach, Diagnosticapproximate
- 0HBW0ZXExcision of Right Nipple, Open Approach, Diagnosticapproximate
- 0HBX0ZXExcision of Left Nipple, Open Approach, Diagnosticapproximate
- 0HBY0ZXExcision of Supernumerary Breast, Open Approach, Diagnosticapproximate
Common questions about 85.12
What is the ICD-10 code for ICD-9 85.12?
- The GEMs map 85.12 to ICD-10-PCS 0H9T0ZX, 0H9U0ZX, 0H9V0ZX, 0H9W0ZX, 0H9X0ZX, 0HBT0ZX and 5 more.
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.