813.18 — Open fracture of radius with ulna, upper end (any part)

813.18 is an ICD-9-CM diagnosis code for open fracture of radius with ulna, upper end (any part). 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 4 ICD-10-CM codes, such as S52.009B (Unspecified fracture of upper end of unspecified ulna, initial encounter for open fracture type I or II), S52.009C (Unspecified fracture of upper end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC) and S52.109B (Unspecified fracture of upper end of unspecified radius, initial encounter for open fracture type I or II). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.