ICD-9-CM procedure code (retired)
40.63 — Closure of fistula of thoracic duct
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 40.63
40.63 is an ICD-9-CM procedure code for closure of fistula of thoracic duct. 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 07QK0ZZ (Repair Thoracic Duct, Open Approach), 07QK3ZZ (Repair Thoracic Duct, Percutaneous Approach) and 07QK4ZZ (Repair Thoracic Duct, 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 40.63
What is the ICD-10 code for ICD-9 40.63?
- The GEMs map 40.63 to ICD-10-PCS 07QK0ZZ, 07QK3ZZ and 07QK4ZZ.
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.