G44.1
Billable codeVascular headache, not elsewhere classified
The ICD-10 code for vascular headache, not elsewhere classified is G44.1.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)non-billable header
- G44.2Tension-type headachenon-billable header
- G44.3Post-traumatic headachenon-billable header
- G44.4Drug-induced headache, not elsewhere classifiednon-billable header
- G44.5Complicated headache syndromesnon-billable header
- G44.8Other specified headache syndromesnon-billable header
- G44.1Vascular headache, not elsewhere classified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7840Approximate match
Associated MS-DRGs
G44.1 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.