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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  • I69.254—

    Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting left non-dominant side

  • I69.259—

    Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting unspecified side

  • I69.26—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage

  • I69.261—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting right dominant side

  • I69.262—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting left dominant side

  • I69.263—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting right non-dominant side

  • I69.264—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting left non-dominant side

  • I69.265—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage, bilateral

  • I69.269—

    Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting unspecified side

  • I69.29—

    Other sequelae of other nontraumatic intracranial hemorrhage

  • I69.290—

    Apraxia following other nontraumatic intracranial hemorrhage

  • I69.291—

    Dysphagia following other nontraumatic intracranial hemorrhage

  • I69.292—

    Facial weakness following other nontraumatic intracranial hemorrhage

  • I69.293—

    Ataxia following other nontraumatic intracranial hemorrhage

  • I69.298—

    Other sequelae of other nontraumatic intracranial hemorrhage

  • I69.3—

    Sequelae of cerebral infarction

  • I69.30—

    Unspecified sequelae of cerebral infarction

  • I69.31—

    Cognitive deficits following cerebral infarction

  • I69.310—

    Attention and concentration deficit following cerebral infarction

  • I69.311—

    Memory deficit following cerebral infarction

  • I69.312—

    Visuospatial deficit and spatial neglect following cerebral infarction

  • I69.313—

    Psychomotor deficit following cerebral infarction

  • I69.314—

    Frontal lobe and executive function deficit following cerebral infarction

  • I69.315—

    Cognitive social or emotional deficit following cerebral infarction

  • I69.318—

    Other symptoms and signs involving cognitive functions following cerebral infarction

  • I69.319—

    Unspecified symptoms and signs involving cognitive functions following cerebral infarction

  • I69.32—

    Speech and language deficits following cerebral infarction

  • I69.320—

    Aphasia following cerebral infarction

  • I69.321—

    Dysphasia following cerebral infarction

  • I69.322—

    Dysarthria following cerebral infarction

  • I69.323—

    Fluency disorder following cerebral infarction

  • I69.328—

    Other speech and language deficits following cerebral infarction

  • I69.33—

    Monoplegia of upper limb following cerebral infarction

  • I69.331—

    Monoplegia of upper limb following cerebral infarction affecting right dominant side

  • I69.332—

    Monoplegia of upper limb following cerebral infarction affecting left dominant side

  • I69.333—

    Monoplegia of upper limb following cerebral infarction affecting right non-dominant side

  • I69.334—

    Monoplegia of upper limb following cerebral infarction affecting left non-dominant side

  • I69.339—

    Monoplegia of upper limb following cerebral infarction affecting unspecified side

  • I69.34—

    Monoplegia of lower limb following cerebral infarction

  • I69.341—

    Monoplegia of lower limb following cerebral infarction affecting right dominant side

  • I69.342—

    Monoplegia of lower limb following cerebral infarction affecting left dominant side

  • I69.343—

    Monoplegia of lower limb following cerebral infarction affecting right non-dominant side

  • I69.344—

    Monoplegia of lower limb following cerebral infarction affecting left non-dominant side

  • I69.349—

    Monoplegia of lower limb following cerebral infarction affecting unspecified side

  • I69.35—

    Hemiplegia and hemiparesis following cerebral infarction

  • I69.351—

    Hemiplegia and hemiparesis following cerebral infarction affecting right dominant side

  • I69.352—

    Hemiplegia and hemiparesis following cerebral infarction affecting left dominant side

  • I69.353—

    Hemiplegia and hemiparesis following cerebral infarction affecting right non-dominant side

  • I69.354—

    Hemiplegia and hemiparesis following cerebral infarction affecting left non-dominant side

  • I69.359—

    Hemiplegia and hemiparesis following cerebral infarction affecting unspecified side

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