S72.409R Unspecified fracture of lower end of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
Billable ICD-10-CM code, FY2026.
Built from S72.409 with 7th character R (subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion).
Applies from S72 Fracture of femur
Excludes1 (never code together)
traumatic amputation of hip and thigh (S78.-)
Excludes2 (not included here)
fracture of lower leg and ankle (S82.-)
fracture of foot (S92.-)
periprosthetic fracture of prosthetic implant of hip (M97.0-)
7th character note
The appropriate 7th character is to be added to all codes from category S72
Notes
A fracture not indicated as displaced or nondisplaced should be coded to displaced
A fracture not indicated as open or closed should be coded to closed
The open fracture designations are based on the Gustilo open fracture classification
7th character required
A — initial encounter for closed fracture
B — initial encounter for open fracture type I or II
C — initial encounter for open fracture type IIIA, IIIB, or IIIC
D — subsequent encounter for closed fracture with routine healing
E — subsequent encounter for open fracture type I or II with routine healing
F — subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
G — subsequent encounter for closed fracture with delayed healing
H — subsequent encounter for open fracture type I or II with delayed healing
J — subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
K — subsequent encounter for closed fracture with nonunion
M — subsequent encounter for open fracture type I or II with nonunion
N — subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
P — subsequent encounter for closed fracture with malunion
Q — subsequent encounter for open fracture type I or II with malunion
R — subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S — sequela
Applies from S72.4 Fracture of lower end of femur
Applicable to
Fracture of distal end of femur
Excludes2 (not included here)
fracture of shaft of femur (S72.3-)
physeal fracture of lower end of femur (S79.1-)
Medicare Code Edits (MCE v43.1 (April 2026))
Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.
Code annotations containing back-references to S72.409R
Type 1 Excludes: M84.4 Pathological fracture, not elsewhere classified ("traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)")
Type 1 Excludes: S71 Open wound of hip and thigh ("open fracture of hip and thigh (S72.-)")
Nearby codes
S72.409K Unspecified fracture of lower end of unspecified femur, subsequent encounter for closed fracture with nonunion
S72.409M Unspecified fracture of lower end of unspecified femur, subsequent encounter for open fracture type I or II with nonunion
S72.409N Unspecified fracture of lower end of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
S72.409P Unspecified fracture of lower end of unspecified femur, subsequent encounter for closed fracture with malunion
S72.409Q Unspecified fracture of lower end of unspecified femur, subsequent encounter for open fracture type I or II with malunion
S72.409R Unspecified fracture of lower end of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion (this code)
S72.409S Unspecified fracture of lower end of unspecified femur, sequela
S72.41 Unspecified condyle fracture of lower end of femur
S72.411 Displaced unspecified condyle fracture of lower end of right femur
S72.411A Displaced unspecified condyle fracture of lower end of right femur, initial encounter for closed fracture
S72.411B Displaced unspecified condyle fracture of lower end of right femur, initial encounter for open fracture type I or II