Coding and coverage · ICD-10-CM

I63

I63.4 Cerebral infarction due to embolism of cerebral arteries

Not billable (header)Chapter 9

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • I63.40 Cerebral infarction due to embolism of unspecified cerebral artery
  • I63.41 Cerebral infarction due to embolism of middle cerebral arteryHeader
  • I63.42 Cerebral infarction due to embolism of anterior cerebral arteryHeader
  • I63.43 Cerebral infarction due to embolism of posterior cerebral arteryHeader
  • I63.44 Cerebral infarction due to embolism of cerebellar arteryHeader
  • I63.49 Cerebral infarction due to embolism of other cerebral artery

Instructional notes

Chapter 9

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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.-)

Section I60-I69

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • traumatic intracranial hemorrhage (S06.-)
Use additional codeAdd a second code for the full picture.
  • code to identify presence of:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • hypertension (I10-I1A)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

I63

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • neonatal cerebral infarction (P91.82-)
Excludes2Not included here: the patient may have both; report both when both are present.
  • chronic, without residual deficits (sequelae) (Z86.73)
  • sequelae of cerebral infarction (I69.3-)
Use additional codeAdd a second code for the full picture.
  • code, if applicable, to identify status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
  • code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)
Includes
  • occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction

Chapter 9: Diseases of the circulatory system · I60-I69 Cerebrovascular diseases (I60-I69)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.