ICD-9-CM diagnosis code (retired)
550.11 — Inguinal hernia, with obstruction, without mention of gangrene, unilateral or unspecified,recurrent
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 550.11
550.11 is an ICD-9-CM diagnosis code for inguinal hernia, with obstruction, without mention of gangrene, unilateral or unspecified,recurrent. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, K40.31 (Unilateral inguinal hernia, with obstruction, without gangrene, recurrent). The match is exact.
ICD-10-CM equivalents
- K40.31Unilateral inguinal hernia, with obstruction, without gangrene, recurrentexact match
Common questions about 550.11
What is the ICD-10 code for ICD-9 550.11?
- The GEMs map 550.11 to ICD-10-CM K40.31.
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.