S82.85
Trimalleolar fracture of lower leg
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 10 never code together
7th character 16
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
Instructional notes 7
S82code
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
Includes
- fracture of malleolus
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 7 same parent — S82.8
S82.81 Torus fracture of upper end of fibula category S82.82 Torus fracture of lower end of fibula category S82.83 Other fracture of upper and lower end of fibula category S82.84 Bimalleolar fracture of lower leg category S82.86 Maisonneuve's fracture category S82.87 Pilon fracture of tibia category S82.89 Other fractures of lower leg category
Subordinate codes 6
S82.851 Displaced trimalleolar fracture of right lower leg S82.852 Displaced trimalleolar fracture of left lower leg S82.853 Displaced trimalleolar fracture of unspecified lower leg S82.854 Nondisplaced trimalleolar fracture of right lower leg S82.855 Nondisplaced trimalleolar fracture of left lower leg S82.856 Nondisplaced trimalleolar fracture of unspecified lower leg
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.