| ICD-10 Code | Description |
| I87.001 | Postthrombotic syndrome without complications of right lower extremity |
| I87.002 | Postthrombotic syndrome without complications of left lower extremity |
| I87.003 | Postthrombotic syndrome without complications of bilateral lower extremity |
| I87.009 | Postthrombotic syndrome without complications of unspecified extremity |
| I87.011 | Postthrombotic syndrome with ulcer of right lower extremity |
| I87.012 | Postthrombotic syndrome with ulcer of left lower extremity |
| I87.013 | Postthrombotic syndrome with ulcer of bilateral lower extremity |
| I87.019 | Postthrombotic syndrome with ulcer of unspecified lower extremity |
| I87.021 | Postthrombotic syndrome with inflammation of right lower extremity |
| I87.022 | Postthrombotic syndrome with inflammation of left lower extremity |
| I87.023 | Postthrombotic syndrome with inflammation of bilateral lower extremity |
| I87.029 | Postthrombotic syndrome with inflammation of unspecified lower extremity |
| I87.031 | Postthrombotic syndrome with ulcer and inflammation of right lower extremity |
| I87.032 | Postthrombotic syndrome with ulcer and inflammation of left lower extremity |
| I87.033 | Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity |
| I87.039 | Postthrombotic syndrome with ulcer and inflammation of unspecified lower extremity |
| I87.091 | Postthrombotic syndrome with other complications of right lower extremity |
| I87.092 | Postthrombotic syndrome with other complications of left lower extremity |
| I87.093 | Postthrombotic syndrome with other complications of bilateral lower extremity |
| I87.099 | Postthrombotic syndrome with other complications of unspecified lower extremity |
