ICD-9-CM diagnosis code (retired)
277.5 — Mucopolysaccharidosis
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 277.5
277.5 is an ICD-9-CM diagnosis code for Mucopolysaccharidosis. 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 7 ICD-10-CM codes, such as E76.01 (Hurler's syndrome), E76.03 (Scheie's syndrome) and E76.1 (Mucopolysaccharidosis, type II). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- E76.01Hurler's syndromeapproximate
- E76.03Scheie's syndromeapproximate
- E76.1Mucopolysaccharidosis, type IIapproximate
- E76.219Morquio mucopolysaccharidoses, unspecifiedapproximate
- E76.22Sanfilippo mucopolysaccharidosesapproximate
- E76.29Other mucopolysaccharidosesapproximate
- E76.3Mucopolysaccharidosis, unspecifiedapproximate
Common questions about 277.5
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.