2021 ICD-10-CM Codes for Other headache syndromes (G44)

Clinical Terms for Other headache syndromes (G44)

Cluster Headache-. A primary headache disorder that is characterized by severe, strictly unilateral PAIN which is orbital, supraorbital, temporal or in any combination of these sites, lasting 15-180 min. occurring 1 to 8 times a day. The attacks are associated with one or more of the following, all of which are ipsilateral: conjunctival injection, lacrimation, nasal congestion, rhinorrhea, facial SWEATING, eyelid EDEMA, and miosis.

Episodic Paroxysmal Hemicrania-. A primary headache disorder that is similar to the CLUSTER HEADACHE with unilateral head pain, but differs by its multiple short severe attacks. It is usually seen in females, and may be responsive to non-steroidal-anti-inflammatory drugs (NSAIDS).

Vascular Headaches-. Secondary headache disorders attributed to a variety of cranial or cervical vascular disorders, such as BRAIN ISCHEMIA; INTRACRANIAL HEMORRHAGES; and CENTRAL NERVOUS SYSTEM VASCULAR MALFORMATIONS.

Tension-Type Headache-. A common primary headache disorder, characterized by a dull, non-pulsatile, diffuse, band-like (or vice-like) PAIN of mild to moderate intensity in the HEAD; SCALP; or NECK. The subtypes are classified by frequency and severity of symptoms. There is no clear cause even though it has been associated with MUSCLE CONTRACTION and stress.

Post-Traumatic Headache-. Secondary headache attributed to TRAUMA of the HEAD and/or the NECK.

Headache Disorders, Primary-. Conditions in which the primary symptom is HEADACHE and the headache cannot be attributed to any known causes.

Instructional Notations

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Type 2 Excludes Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • atypical facial pain G50.1
  • headache due to lumbar puncture G97.1
  • migraines G43
  • trigeminal neuralgia G50.0
    • ICD-10 Index

      • Diseases of the nervous system (G00–G99)

        • Episodic and paroxysmal disorders (G40-G47)

            • Other headache syndromes (G44)
            • G44 - Other headache syndromes NON-BILLABLE CODE
            • G44.0 - Cluster headaches and oth trigeminal autonm cephalgias (TAC) NON-BILLABLE CODE
            • G44.00 - Cluster headache syndrome, unspecified NON-BILLABLE CODE
            • G44.001 - Cluster headache syndrome, unspecified, intractable BILLABLE CODE
            • G44.009 - Cluster headache syndrome, unspecified, not intractable BILLABLE CODE
            • G44.01 - Episodic cluster headache NON-BILLABLE CODE
            • G44.011 - Episodic cluster headache, intractable BILLABLE CODE
            • G44.019 - Episodic cluster headache, not intractable BILLABLE CODE
            • G44.02 - Chronic cluster headache NON-BILLABLE CODE
            • G44.021 - Chronic cluster headache, intractable BILLABLE CODE
            • G44.029 - Chronic cluster headache, not intractable BILLABLE CODE
            • G44.03 - Episodic paroxysmal hemicrania NON-BILLABLE CODE
            • G44.031 - Episodic paroxysmal hemicrania, intractable BILLABLE CODE
            • G44.039 - Episodic paroxysmal hemicrania, not intractable BILLABLE CODE
            • G44.04 - Chronic paroxysmal hemicrania NON-BILLABLE CODE
            • G44.041 - Chronic paroxysmal hemicrania, intractable BILLABLE CODE
            • G44.049 - Chronic paroxysmal hemicrania, not intractable BILLABLE CODE
            • G44.05 - Shrt lst unil nerlgif headache w cnjnct inject/tear (SUNCT) NON-BILLABLE CODE
            • G44.051 - Shrt lst unil nerlgif hdache w cnjnct inject/tear, ntrct BILLABLE CODE
            • G44.059 - Shrt lst unil nerlgif hdache w cnjnct inject/tear, not ntrct BILLABLE CODE
            • G44.09 - Other trigeminal autonomic cephalgias (TAC) NON-BILLABLE CODE
            • G44.091 - Other trigeminal autonomic cephalgias (TAC), intractable BILLABLE CODE
            • G44.099 - Other trigeminal autonomic cephalgias (TAC), not intractable BILLABLE CODE
            • G44.1 - Vascular headache, not elsewhere classified BILLABLE CODE
            • G44.2 - Tension-type headache NON-BILLABLE CODE
            • G44.20 - Tension-type headache, unspecified NON-BILLABLE CODE
            • G44.201 - Tension-type headache, unspecified, intractable BILLABLE CODE
            • G44.209 - Tension-type headache, unspecified, not intractable BILLABLE CODE
            • G44.21 - Episodic tension-type headache NON-BILLABLE CODE
            • G44.211 - Episodic tension-type headache, intractable BILLABLE CODE
            • G44.219 - Episodic tension-type headache, not intractable BILLABLE CODE
            • G44.22 - Chronic tension-type headache NON-BILLABLE CODE
            • G44.221 - Chronic tension-type headache, intractable BILLABLE CODE
            • G44.229 - Chronic tension-type headache, not intractable BILLABLE CODE
            • G44.3 - Post-traumatic headache NON-BILLABLE CODE
            • G44.30 - Post-traumatic headache, unspecified NON-BILLABLE CODE
            • G44.301 - Post-traumatic headache, unspecified, intractable BILLABLE CODE
            • G44.309 - Post-traumatic headache, unspecified, not intractable BILLABLE CODE
            • G44.31 - Acute post-traumatic headache NON-BILLABLE CODE
            • G44.311 - Acute post-traumatic headache, intractable BILLABLE CODE
            • G44.319 - Acute post-traumatic headache, not intractable BILLABLE CODE
            • G44.32 - Chronic post-traumatic headache NON-BILLABLE CODE
            • G44.321 - Chronic post-traumatic headache, intractable BILLABLE CODE
            • G44.329 - Chronic post-traumatic headache, not intractable BILLABLE CODE
            • G44.4 - Drug-induced headache, not elsewhere classified NON-BILLABLE CODE
            • G44.40 - Drug-induced headache, NEC, not intractable BILLABLE CODE
            • G44.41 - Drug-induced headache, not elsewhere classified, intractable BILLABLE CODE
            • G44.5 - Complicated headache syndromes NON-BILLABLE CODE
            • G44.51 - Hemicrania continua BILLABLE CODE
            • G44.52 - New daily persistent headache (NDPH) BILLABLE CODE
            • G44.53 - Primary thunderclap headache BILLABLE CODE
            • G44.59 - Other complicated headache syndrome BILLABLE CODE
            • G44.8 - Other specified headache syndromes NON-BILLABLE CODE
            • G44.81 - Hypnic headache BILLABLE CODE
            • G44.82 - Headache associated with sexual activity BILLABLE CODE
            • G44.83 - Primary cough headache BILLABLE CODE
            • G44.84 - Primary exertional headache BILLABLE CODE
            • G44.85 - Primary stabbing headache BILLABLE CODE
            • G44.89 - Other headache syndrome BILLABLE CODE