ICD-10-CM Code for Tibial Plateau Fracture of the Left Knee
The ICD-10-CM code for a tibial plateau fracture of the left knee is S82.1—with the seventh character extension required to specify the episode of care and laterality modifier for the left side.
Specific Code Structure
The complete code follows this format:
- S82.1 = Base code for fracture of upper end of tibia (tibial plateau)
- Laterality modifier: Add "2" for left side
- Seventh character extension (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
- K = Subsequent encounter for closed fracture with nonunion
- M = Subsequent encounter for open fracture with nonunion
- S = Sequela
Most Common Coding Scenarios
For initial presentation of a closed tibial plateau fracture of the left knee: S82.142A
This represents:
- S82.1 = Tibial plateau fracture
- 4 = Bicondylar fracture (if applicable; use appropriate digit for fracture type)
- 2 = Left side
- A = Initial encounter, closed fracture
Fracture Type Specifications
The fourth digit specifies fracture morphology:
- S82.111- = Unspecified fracture of right upper end of tibia
- S82.112- = Unspecified fracture of left upper end of tibia
- S82.131-/132- = Medial condyle fracture
- S82.141-/142- = Bicondylar fracture
- S82.151-/152- = Lateral condyle fracture
Clinical Context
The provided evidence 1 discusses imaging and management of tibial plateau fractures but does not contain ICD-10 coding information. The epidemiological data 2 confirms these fractures represent a significant burden with an incidence of 22.4-25.3 per 100,000 inhabitants in Germany, with 68.8% being multifragmentary fractures requiring precise documentation.
Always verify the specific fracture pattern (unspecified, medial condyle, lateral condyle, or bicondylar) and whether the fracture is open or closed to select the most accurate seventh character extension.