ICD-9-CM procedure code (retired)
01.12 — Open biopsy of cerebral meninges
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 01.12
01.12 is an ICD-9-CM procedure code for open biopsy of cerebral meninges. 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 4 ICD-10-PCS codes, such as 00910ZX (Drainage of Cerebral Meninges, Open Approach, Diagnostic), 00920ZX (Drainage of Dura Mater, Open Approach, Diagnostic) and 00B10ZX (Excision of Cerebral Meninges, Open Approach, Diagnostic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 01.12
What is the ICD-10 code for ICD-9 01.12?
- The GEMs map 01.12 to ICD-10-PCS 00910ZX, 00920ZX, 00B10ZX and 00B20ZX.
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.