| 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 |
| I87.1 | Compression of vein |
| I87.2 | Venous insufficiency (chronic) (peripheral) |
| I87.301 | Chronic venous hypertension (idiopathic) without complications of right lower extremity |
| I87.302 | Chronic venous hypertension (idiopathic) without complications of left lower extremity |
| I87.303 | Chronic venous hypertension (idiopathic) without complications of bilateral lower extremity |
| I87.309 | Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity |
| I87.311 | Chronic venous hypertension (idiopathic) with ulcer of right lower extremity |
| I87.312 | Chronic venous hypertension (idiopathic) with ulcer of left lower extremity |
| I87.313 | Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity |
| I87.319 | Chronic venous hypertension (idiopathic) with ulcer of unspecified lower extremity |
| I87.321 | Chronic venous hypertension (idiopathic) with inflammation of right lower extremity |
| I87.322 | Chronic venous hypertension (idiopathic) with inflammation of left lower extremity |
| I87.323 | Chronic venous hypertension (idiopathic) with inflammation of bilateral lower extremity |
| I87.329 | Chronic venous hypertension (idiopathic) with inflammation of unspecified lower extremity |
| I87.331 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of right lower extremity |
| I87.332 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of left lower extremity |
| I87.333 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity |
| I87.339 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of unspecified lower extremity |
| I87.391 | Chronic venous hypertension (idiopathic) with other complications of right lower extremity |
| I87.392 | Chronic venous hypertension (idiopathic) with other complications of left lower extremity |
| I87.393 | Chronic venous hypertension (idiopathic) with other complications of bilateral lower extremity |
| I87.399 | Chronic venous hypertension (idiopathic) with other complications of unspecified lower extremity |
| I87.8 | Other specified disorders of veins |
| I87.9 | Disorder of vein, unspecified |
