ICD-9-CM diagnosis code (retired)
733.81 — Malunion of fracture
About ICD-9-CM 733.81
733.81 is an ICD-9-CM diagnosis code for malunion of fracture. 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 25 ICD-10-CM codes, such as S42.009P (Fracture of unspecified part of unspecified clavicle, subsequent encounter for fracture with malunion), S42.209P (Unspecified fracture of upper end of unspecified humerus, subsequent encounter for fracture with malunion) and S42.90XP (Fracture of unspecified shoulder girdle, part unspecified, subsequent encounter for fracture with malunion). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- S42.009PFracture of unspecified part of unspecified clavicle, subsequent encounter for fracture with malunionapproximate
- S42.209PUnspecified fracture of upper end of unspecified humerus, subsequent encounter for fracture with malunionapproximate
- S42.90XPFracture of unspecified shoulder girdle, part unspecified, subsequent encounter for fracture with malunionapproximate
- S52.90XPUnspecified fracture of unspecified forearm, subsequent encounter for closed fracture with malunionapproximate
- S52.90XQUnspecified fracture of unspecified forearm, subsequent encounter for open fracture type I or II with malunionapproximate
- S52.90XRUnspecified fracture of unspecified forearm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionapproximate
- S62.90XPUnspecified fracture of unspecified hand, subsequent encounter for fracture with malunionapproximate
- S72.90XPUnspecified fracture of unspecified femur, subsequent encounter for closed fracture with malunionapproximate
- S72.90XQUnspecified fracture of unspecified femur, subsequent encounter for open fracture type I or II with malunionapproximate
- S72.90XRUnspecified fracture of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionapproximate
- S82.009PUnspecified fracture of unspecified patella, subsequent encounter for closed fracture with malunionapproximate
- S82.009QUnspecified fracture of unspecified patella, subsequent encounter for open fracture type I or II with malunionapproximate
- S82.009RUnspecified fracture of unspecified patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionapproximate
- S82.90XPUnspecified fracture of unspecified lower leg, subsequent encounter for closed fracture with malunionapproximate
- S82.90XQUnspecified fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with malunionapproximate
- S82.90XRUnspecified fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionapproximate
- S92.819POther fracture of unspecified foot, subsequent encounter for fracture with malunionapproximate
- S92.909PUnspecified fracture of unspecified foot, subsequent encounter for fracture with malunionapproximate
- S92.919PUnspecified fracture of unspecified toe(s), subsequent encounter for fracture with malunionapproximate
- S99.209PUnspecified physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
- S99.219PSalter-Harris Type I physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
- S99.229PSalter-Harris Type II physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
- S99.239PSalter-Harris Type III physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
- S99.249PSalter-Harris Type IV physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
- S99.299POther physeal fracture of phalanx of unspecified toe, subsequent encounter for fracture with malunionapproximate
Common questions about 733.81
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.