ICD-9-CM procedure code (retired)
50.21 — Marsupialization of lesion of liver
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 50.21
50.21 is an ICD-9-CM procedure code for marsupialization of lesion of liver. 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 0F900ZZ (Drainage of Liver, Open Approach), 0F903ZZ (Drainage of Liver, Percutaneous Approach) and 0F904ZZ (Drainage of Liver, 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 50.21
What is the ICD-10 code for ICD-9 50.21?
- The GEMs map 50.21 to ICD-10-PCS 0F900ZZ, 0F903ZZ and 0F904ZZ.
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.