ICDcodes.org
FY2027

G43.4 — Hemiplegic migraine

Not billable

Is G43.4 billable?

No — G43.4 is a non-billable header code. G43.4 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath G43.4.

G43.4 at a glance

CodeG43.4
DescriptionHemiplegic migraine
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Inclusion terms

Alternative wording in documentation that is classified to G43.4.

  • Familial migraine
  • Sporadic migraine

Excludes1 — never code together — inherited from G43

The conditions below can never be reported together with G43.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Use additional code — inherited from G43

Report an additional code alongside G43.4 to fully describe the condition. G43.4 is sequenced first.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes2 — not included here — inherited from Chapter 6

The conditions below are not part of G43.4, but a patient may have both at the same time. When documentation supports it, G43.4 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)

Excludes2 — not included here — inherited from G43

The conditions below are not part of G43.4, but a patient may have both at the same time. When documentation supports it, G43.4 and the excluded code may both be reported.

What codes fall under G43.4? (2)

How long has G43.4 existed?

G43.4 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 G43 family? (12)