G00–G99: Diseases of the Nervous System
Chapter 6 of ICD-10-CM 2027, 932 codes in 11 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- 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)
Codes in this chapter
All codesBillable only932 results
- G43.B0Ophthalmoplegic migraine, not intractable
- G43.B1Ophthalmoplegic migraine, intractable
- G43.CPeriodic headache syndromes in child or adult
- G43.C0Periodic headache syndromes in child or adult, not intractable
- G43.C1Periodic headache syndromes in child or adult, intractable
- G43.DAbdominal migraine
- G43.D0Abdominal migraine, not intractable
- G43.D1Abdominal migraine, intractable
- G43.EChronic migraine with aura
- G43.E0Chronic migraine with aura, not intractable
- G43.E01Chronic migraine with aura, not intractable, with status migrainosus
- G43.E09Chronic migraine with aura, not intractable, without status migrainosus
- G43.E1Chronic migraine with aura, intractable
- G43.E11Chronic migraine with aura, intractable, with status migrainosus
- G43.E19Chronic migraine with aura, intractable, without status migrainosus
- G44Other headache syndromes
- G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)
- G44.00Cluster headache syndrome, unspecified
- G44.001Cluster headache syndrome, unspecified, intractable
- G44.009Cluster headache syndrome, unspecified, not intractable
- G44.01Episodic cluster headache
- G44.011Episodic cluster headache, intractable
- G44.019Episodic cluster headache, not intractable
- G44.02Chronic cluster headache
- G44.021Chronic cluster headache, intractable
- G44.029Chronic cluster headache, not intractable
- G44.03Episodic paroxysmal hemicrania
- G44.031Episodic paroxysmal hemicrania, intractable
- G44.039Episodic paroxysmal hemicrania, not intractable
- G44.04Chronic paroxysmal hemicrania
- G44.041Chronic paroxysmal hemicrania, intractable
- G44.049Chronic paroxysmal hemicrania, not intractable
- G44.05Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)
- G44.051Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable
- G44.059Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable
- G44.09Other trigeminal autonomic cephalgias (TAC)
- G44.091Other trigeminal autonomic cephalgias (TAC), intractable
- G44.099Other trigeminal autonomic cephalgias (TAC), not intractable
- G44.1Vascular headache, not elsewhere classified
- G44.2Tension-type headache
- G44.20Tension-type headache, unspecified
- G44.201Tension-type headache, unspecified, intractable
- G44.209Tension-type headache, unspecified, not intractable
- G44.21Episodic tension-type headache
- G44.211Episodic tension-type headache, intractable
- G44.219Episodic tension-type headache, not intractable
- G44.22Chronic tension-type headache
- G44.221Chronic tension-type headache, intractable
- G44.229Chronic tension-type headache, not intractable
- G44.3Post-traumatic headache