S82.843 – Displaced bimalleolar fracture of unspecified lower leg
ICD-10-CM 2027 diagnosis code · Injuries to the knee and lower leg
ICD-10-CM code
S82.843
- Code
S82.843(claims format:S82843)- Description
- Displaced bimalleolar fracture of unspecified lower leg
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S80-S89 Injuries to the knee and lower leg
- Parent codes
- S82 › S82.8 › S82.84
Billable codes under S82.843
S82.843 is a header code and cannot be used on claims. Choose the most specific code:
- S82.843A – Displaced bimalleolar fracture of unspecified lower leg, initial encounter for closed fractureBillable
- S82.843B – Displaced bimalleolar fracture of unspecified lower leg, initial encounter for open fracture type I or IIBillable
- S82.843C – Displaced bimalleolar fracture of unspecified lower leg, initial encounter for open fracture type IIIA, IIIB, or IIICBillable
- S82.843D – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with routine healingBillable
- S82.843E – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with routine healingBillable
- S82.843F – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingBillable
- S82.843G – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with delayed healingBillable
- S82.843H – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with delayed healingBillable
- S82.843J – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingBillable
- S82.843K – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with nonunionBillable
- S82.843M – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with nonunionBillable
- S82.843N – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionBillable
- S82.843P – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with malunionBillable
- S82.843Q – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with malunionBillable
- S82.843R – Displaced bimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionBillable
- S82.843S – Displaced bimalleolar fracture of unspecified lower leg, sequelaBillable
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
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 |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S82 – Fracture of lower leg, including ankle
Includes:
- fracture of malleolus
Excludes1 (not coded here):
- traumatic amputation of lower leg (S88.-)
Excludes2 (not included here):
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 note:
- The appropriate 7th character is to be added to all codes from category S82
Block S80-S89
Related codes in S82.84
- S82.841 – Displaced bimalleolar fracture of right lower legHeader
- S82.842 – Displaced bimalleolar fracture of left lower legHeader
- S82.844 – Nondisplaced bimalleolar fracture of right lower legHeader
- S82.845 – Nondisplaced bimalleolar fracture of left lower legHeader
- S82.846 – Nondisplaced bimalleolar fracture of unspecified lower legHeader
Frequently asked questions
What is ICD-10 code S82.843?
S82.843 is the ICD-10-CM code for displaced bimalleolar fracture of unspecified lower leg, in the block S80-S89 (Injuries to the knee and lower leg).
Is S82.843 a billable code?
No. S82.843 is a header code with more specific child codes; report one of the billable codes listed above.
What category does S82.843 belong to?
It belongs to category S82 – Fracture of lower leg, including ankle.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.