ICDcodes.org
FY2027

G46.4 — Cerebellar stroke syndrome

Billable

Is G46.4 billable?

Yes — G46.4 is billable for FY2027. G46.4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G46.4 may be submitted for encounters from October 1, 2026 through September 30, 2027.

G46.4 at a glance

CodeG46.4
DescriptionCerebellar stroke syndrome
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does G46.4 group to?

G46.4 sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 070Other Cerebrovascular Disorders with MCCmedical
  • 071Other Cerebrovascular Disorders with CCmedical
  • 072Other Cerebrovascular Disorders without CC/MCCmedical

How is G46.4 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to G46.4. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Syndrome › dorsolateral medullary
  • Syndrome › cerebellar › stroke
  • Syndrome › lateral › medullary

Code first — inherited from G46

The underlying condition below must be sequenced before G46.4. G46.4 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • underlying cerebrovascular disease (I60-I69)

Excludes2 — not included here — inherited from Chapter 6

The conditions below are not part of G46.4, but a patient may have both at the same time. When documentation supports it, G46.4 and the excluded code may both be reported.

  • 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)

How long has G46.4 existed?

G46.4 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the G46 family? (8)