`S82.844R` Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Billable ICD-10-CM code, FY2026.

Built from S82.844 with 7th character R (subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion).

fracture of foot, except ankle (S92.-)
periprosthetic fracture around internal prosthetic ankle joint (M97.2)
periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)

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

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

Code annotations containing back-references to S82.844R

Type 1 Excludes: S82.3 Fracture of lower end of tibia ("bimalleolar fracture of lower leg (S82.84-)")

Type 2 Excludes: M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")
Type 1 Excludes: M84.3 Stress fracture ("traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)")
Type 1 Excludes: M84.4 Pathological fracture, not elsewhere classified ("traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)")
Type 2 Excludes: S72 Fracture of femur ("fracture of lower leg and ankle (S82.-)")
Type 1 Excludes: S81 Open wound of knee and lower leg ("open fracture of knee and lower leg (S82.-)")
Type 2 Excludes: S92 Fracture of foot and toe, except ankle ("fracture of ankle (S82.-)")
Type 2 Excludes: S92 Fracture of foot and toe, except ankle ("fracture of malleolus (S82.-)")

S82.844K Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for closed fracture with nonunion
S82.844M Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with nonunion
S82.844N Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
S82.844P Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for closed fracture with malunion
S82.844Q Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with malunion
S82.844R Nondisplaced bimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion (this code)
S82.844S Nondisplaced bimalleolar fracture of right lower leg, sequela
S82.845 Nondisplaced bimalleolar fracture of left lower leg
S82.845A Nondisplaced bimalleolar fracture of left lower leg, initial encounter for closed fracture
S82.845B Nondisplaced bimalleolar fracture of left lower leg, initial encounter for open fracture type I or II
S82.845C Nondisplaced bimalleolar fracture of left lower leg, initial encounter for open fracture type IIIA, IIIB, or IIIC