G46.8
Other vascular syndromes of brain in cerebrovascular diseases
BillableComplete code, valid to report
G46.8 (also written G468) is a billable ICD-10-CM diagnosis code for other vascular syndromes of brain in cerebrovascular diseases. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category G46 (Vascular syndromes of brain in cerebrovascular diseases). The Alphabetic Index lists it under 3 entries. Its coding notes include a Code first instruction and 8 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
- 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)
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 3 entries