I63.42
Cerebral infarction due to embolism of anterior cerebral artery
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 14 never code together
I63code
I00-I99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- transient cerebral ischemic attacks and related syndromes (G45.-)G45.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 11
I63code
Includes
- occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction
I60-I69block
Use additional code
- code to identify presence of:
- alcohol abuse and dependence (F10.-)F10.-
- exposure to environmental tobacco smoke (Z77.22)Z77.22
- history of tobacco dependence (Z87.891)Z87.891
- hypertension (I10-I1A)I10-I1A
- occupational exposure to environmental tobacco smoke (Z57.31)Z57.31
- tobacco dependence (F17.-)F17.-
- tobacco use (Z72.0)Z72.0
Index entries leading here 8
- Disease, diseased — see also Syndrome
- Occlusion, occluded
- Softening
- Infarct, infarction
- Hemiplegia G81.9
- embolic (current episode) I63.4
- Monoplegia G83.3
- embolic (current episode) I63.4
- Paralysis, paralytic (complete) (incomplete) G83.9
- embolic (current episode) I63.4
- Quadriplegia G82.50
- embolic (current episode) I63.4
Alongside this code 5 same parent — I63.4
I63.40 Cerebral infarction due to embolism of unsp cerebral artery I63.41 Cerebral infrc due to embolism of middle cerebral artery category I63.43 Cerebral infrc due to embolism of posterior cerebral artery category I63.44 Cerebral infarction due to embolism of cerebellar artery category I63.49 Cerebral infarction due to embolism of other cerebral artery
Subordinate codes 4
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.