G44.1 Vascular headache, not elsewhere classified
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Vascular headache, not elsewhere classified
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- headache NOS (R51.9)
Excludes2
Not part of this code, but both can be coded when both are documented.
- cluster headache (G44.0)
- complicated headache syndromes (G44.5-)
- drug-induced headache (G44.4-)
- migraine (G43.-)
- other specified headache syndromes (G44.8-)
- post-traumatic headache (G44.3-)
- tension-type headache (G44.2-)
- atypical facial pain (G50.1)
- headache due to lumbar puncture (G97.1)
- migraines (G43.-)
- trigeminal neuralgia (G50.0)
Related codes
G44.051Short lasting unilateral neuralgiform headache with conjunctival injection and tearing ICD-10-CMG44.059Short lasting unilateral neuralgiform headache with conjunctival injection and tearing ICD-10-CMG44.091Other trigeminal autonomic cephalgias (TAC), intractable ICD-10-CMG44.099Other trigeminal autonomic cephalgias (TAC), not intractable ICD-10-CMG44.201Tension-type headache, unspecified, intractable ICD-10-CMG44.209Tension-type headache, unspecified, not intractable ICD-10-CMG44.211Episodic tension-type headache, intractable ICD-10-CMG44.219Episodic tension-type headache, not intractable ICD-10-CM
Common questions
Is G44.1 a billable code?
Yes. G44.1 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.