ICD-10 Code G44.85 – Primary stabbing headache (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G44.85 – Primary stabbing headache
What it is
G44.85 identifies primary stabbing headache, a brief headache disorder marked by sudden, sharp head pain without another known cause. Use it when the condition is documented as primary and not secondary to another disorder.
Clinical signs
Clinical features include very short, stabbing or ice-pick-like head pains that occur spontaneously. Attacks are usually recurrent and may happen in different head locations; clinical features vary, so refer to documentation.
When to use this code
Use G44.85 when the provider documents primary stabbing headache, ice-pick headache, or stabbing head pain as the diagnosis. This code fits cases where the headache is considered a primary headache disorder and no alternate cause is identified. Check documentation if another headache type is also recorded.
Do not use for
Do not use this code for headaches caused by trauma, infection, migraine, or another confirmed underlying condition. If the record does not clearly support a primary stabbing headache diagnosis, check documentation.
Coding tip
Assign G44.85 only when the provider clearly names the disorder; otherwise, query for the specific headache diagnosis.