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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  • I69.80—

    Unspecified sequelae of other cerebrovascular disease

  • I69.810—

    Attention and concentration deficit following other cerebrovascular disease

  • I69.811—

    Memory deficit following other cerebrovascular disease

  • I69.812—

    Visuospatial deficit and spatial neglect following other cerebrovascular disease

  • I69.813—

    Psychomotor deficit following other cerebrovascular disease

  • I69.814—

    Frontal lobe and executive function deficit following other cerebrovascular disease

  • I69.815—

    Cognitive social or emotional deficit following other cerebrovascular disease

  • I69.818—

    Other symptoms and signs involving cognitive functions following other cerebrovascular disease

  • I69.819—

    Unspecified symptoms and signs involving cognitive functions following other cerebrovascular disease

  • I69.820—

    Aphasia following other cerebrovascular disease

  • I69.821—

    Dysphasia following other cerebrovascular disease

  • I69.822—

    Dysarthria following other cerebrovascular disease

  • I69.823—

    Fluency disorder following other cerebrovascular disease

  • I69.828—

    Other speech and language deficits following other cerebrovascular disease

  • I69.831—

    Monoplegia of upper limb following other cerebrovascular disease affecting right dominant side

  • I69.832—

    Monoplegia of upper limb following other cerebrovascular disease affecting left dominant side

  • I69.833—

    Monoplegia of upper limb following other cerebrovascular disease affecting right non-dominant side

  • I69.834—

    Monoplegia of upper limb following other cerebrovascular disease affecting left non-dominant side

  • I69.839—

    Monoplegia of upper limb following other cerebrovascular disease affecting unspecified side

  • I69.841—

    Monoplegia of lower limb following other cerebrovascular disease affecting right dominant side

  • I69.842—

    Monoplegia of lower limb following other cerebrovascular disease affecting left dominant side

  • I69.843—

    Monoplegia of lower limb following other cerebrovascular disease affecting right non-dominant side

  • I69.844—

    Monoplegia of lower limb following other cerebrovascular disease affecting left non-dominant side

  • I69.849—

    Monoplegia of lower limb following other cerebrovascular disease affecting unspecified side

  • I69.851—

    Hemiplegia and hemiparesis following other cerebrovascular disease affecting right dominant side

  • I69.852—

    Hemiplegia and hemiparesis following other cerebrovascular disease affecting left dominant side

  • I69.853—

    Hemiplegia and hemiparesis following other cerebrovascular disease affecting right non-dominant side

  • I69.854—

    Hemiplegia and hemiparesis following other cerebrovascular disease affecting left non-dominant side

  • I69.859—

    Hemiplegia and hemiparesis following other cerebrovascular disease affecting unspecified side

  • I69.861—

    Other paralytic syndrome following other cerebrovascular disease affecting right dominant side

  • I69.862—

    Other paralytic syndrome following other cerebrovascular disease affecting left dominant side

  • I69.863—

    Other paralytic syndrome following other cerebrovascular disease affecting right non-dominant side

  • I69.864—

    Other paralytic syndrome following other cerebrovascular disease affecting left non-dominant side

  • I69.865—

    Other paralytic syndrome following other cerebrovascular disease, bilateral

  • I69.869—

    Other paralytic syndrome following other cerebrovascular disease affecting unspecified side

  • I69.890—

    Apraxia following other cerebrovascular disease

  • I69.891—

    Dysphagia following other cerebrovascular disease

  • I69.892—

    Facial weakness following other cerebrovascular disease

  • I69.893—

    Ataxia following other cerebrovascular disease

  • I69.898—

    Other sequelae of other cerebrovascular disease

  • I69.90—

    Unspecified sequelae of unspecified cerebrovascular disease

  • I69.910—

    Attention and concentration deficit following unspecified cerebrovascular disease

  • I69.911—

    Memory deficit following unspecified cerebrovascular disease

  • I69.912—

    Visuospatial deficit and spatial neglect following unspecified cerebrovascular disease

  • I69.913—

    Psychomotor deficit following unspecified cerebrovascular disease

  • I69.914—

    Frontal lobe and executive function deficit following unspecified cerebrovascular disease

  • I69.915—

    Cognitive social or emotional deficit following unspecified cerebrovascular disease

  • I69.918—

    Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease

  • I69.919—

    Unspecified symptoms and signs involving cognitive functions following unspecified cerebrovascular disease

  • I69.920—

    Aphasia following unspecified cerebrovascular disease

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