ICD-9-CM procedure code (retired)
02.21 — Insertion or replacement of external ventricular drain [EVD]
About ICD-9-CM 02.21
02.21 is an ICD-9-CM procedure code for insertion or replacement of external ventricular drain [EVD]. 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 3 ICD-10-PCS codes, such as 009600Z (Drainage of Cerebral Ventricle with Drainage Device, Open Approach), 009630Z (Drainage of Cerebral Ventricle with Drainage Device, Percutaneous Approach) and 009640Z (Drainage of Cerebral Ventricle with Drainage Device, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 02.21
What is the ICD-10 code for ICD-9 02.21?
- The GEMs map 02.21 to ICD-10-PCS 009600Z, 009630Z and 009640Z.
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.