All ICD10 Codes
Chapter 9

I00–I99: Diseases of the Circulatory System

Diseases of the Circulatory System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)
All CodesBillable Only
Internal Codes
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  • I83.1—

    Varicose veins of lower extremities with inflammation

  • I83.10—

    Varicose veins of unspecified lower extremity with inflammation

  • I83.11—

    Varicose veins of right lower extremity with inflammation

  • I83.12—

    Varicose veins of left lower extremity with inflammation

  • I83.2—

    Varicose veins of lower extremities with both ulcer and inflammation

  • I83.20—

    Varicose veins of unspecified lower extremity with both ulcer and inflammation

  • I83.201—

    Varicose veins of unspecified lower extremity with both ulcer of thigh and inflammation

  • I83.202—

    Varicose veins of unspecified lower extremity with both ulcer of calf and inflammation

  • I83.203—

    Varicose veins of unspecified lower extremity with both ulcer of ankle and inflammation

  • I83.204—

    Varicose veins of unspecified lower extremity with both ulcer of heel and midfoot and inflammation

  • I83.205—

    Varicose veins of unspecified lower extremity with both ulcer other part of foot and inflammation

  • I83.208—

    Varicose veins of unspecified lower extremity with both ulcer of other part of lower extremity and inflammation

  • I83.209—

    Varicose veins of unspecified lower extremity with both ulcer of unspecified site and inflammation

  • I83.21—

    Varicose veins of right lower extremity with both ulcer and inflammation

  • I83.211—

    Varicose veins of right lower extremity with both ulcer of thigh and inflammation

  • I83.212—

    Varicose veins of right lower extremity with both ulcer of calf and inflammation

  • I83.213—

    Varicose veins of right lower extremity with both ulcer of ankle and inflammation

  • I83.214—

    Varicose veins of right lower extremity with both ulcer of heel and midfoot and inflammation

  • I83.215—

    Varicose veins of right lower extremity with both ulcer other part of foot and inflammation

  • I83.218—

    Varicose veins of right lower extremity with both ulcer of other part of lower extremity and inflammation

  • I83.219—

    Varicose veins of right lower extremity with both ulcer of unspecified site and inflammation

  • I83.22—

    Varicose veins of left lower extremity with both ulcer and inflammation

  • I83.221—

    Varicose veins of left lower extremity with both ulcer of thigh and inflammation

  • I83.222—

    Varicose veins of left lower extremity with both ulcer of calf and inflammation

  • I83.223—

    Varicose veins of left lower extremity with both ulcer of ankle and inflammation

  • I83.224—

    Varicose veins of left lower extremity with both ulcer of heel and midfoot and inflammation

  • I83.225—

    Varicose veins of left lower extremity with both ulcer other part of foot and inflammation

  • I83.228—

    Varicose veins of left lower extremity with both ulcer of other part of lower extremity and inflammation

  • I83.229—

    Varicose veins of left lower extremity with both ulcer of unspecified site and inflammation

  • I83.8—

    Varicose veins of lower extremities with other complications

  • I83.81—

    Varicose veins of lower extremities with pain

  • I83.811—

    Varicose veins of right lower extremity with pain

  • I83.812—

    Varicose veins of left lower extremity with pain

  • I83.813—

    Varicose veins of bilateral lower extremities with pain

  • I83.819—

    Varicose veins of unspecified lower extremity with pain

  • I83.89—

    Varicose veins of lower extremities with other complications

  • I83.891—

    Varicose veins of right lower extremity with other complications

  • I83.892—

    Varicose veins of left lower extremity with other complications

  • I83.893—

    Varicose veins of bilateral lower extremities with other complications

  • I83.899—

    Varicose veins of unspecified lower extremity with other complications

  • I83.9—

    Asymptomatic varicose veins of lower extremities

  • I83.90—

    Asymptomatic varicose veins of unspecified lower extremity

  • I83.91—

    Asymptomatic varicose veins of right lower extremity

  • I83.92—

    Asymptomatic varicose veins of left lower extremity

  • I83.93—

    Asymptomatic varicose veins of bilateral lower extremities

  • I85—

    Esophageal varices

  • I85.0—

    Esophageal varices

  • I85.00—

    Esophageal varices without bleeding

  • I85.01—

    Esophageal varices with bleeding

  • I85.1—

    Secondary esophageal varices

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