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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  • I69.36—

    Other paralytic syndrome following cerebral infarction

  • I69.361—

    Other paralytic syndrome following cerebral infarction affecting right dominant side

  • I69.362—

    Other paralytic syndrome following cerebral infarction affecting left dominant side

  • I69.363—

    Other paralytic syndrome following cerebral infarction affecting right non-dominant side

  • I69.364—

    Other paralytic syndrome following cerebral infarction affecting left non-dominant side

  • I69.365—

    Other paralytic syndrome following cerebral infarction, bilateral

  • I69.369—

    Other paralytic syndrome following cerebral infarction affecting unspecified side

  • I69.39—

    Other sequelae of cerebral infarction

  • I69.390—

    Apraxia following cerebral infarction

  • I69.391—

    Dysphagia following cerebral infarction

  • I69.392—

    Facial weakness following cerebral infarction

  • I69.393—

    Ataxia following cerebral infarction

  • I69.398—

    Other sequelae of cerebral infarction

  • I69.8—

    Sequelae of other cerebrovascular diseases

  • I69.80—

    Unspecified sequelae of other cerebrovascular disease

  • I69.81—

    Cognitive deficits following 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

  • I69.82—

    Speech and language deficits 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

  • I69.83—

    Monoplegia of upper limb 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

  • I69.84—

    Monoplegia of lower limb following other cerebrovascular disease

  • 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

  • I69.85—

    Hemiplegia and hemiparesis following other cerebrovascular disease

  • 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

  • I69.86—

    Other paralytic syndrome following other cerebrovascular disease

  • I69.861—

    Other paralytic syndrome following other cerebrovascular disease affecting right dominant side

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