ICD-10-CM 2027
ICD-10 code for neuralgia
From the official ICD-10-CM alphabetic index entry “Neuralgia, neuralgic (acute)”. Page updated September 29, 2026.
About coding neuralgia
The ICD-10-CM code for neuralgia is M79.2 (Neuralgia and neuritis, unspecified). The official index lists 40 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M79.2.
Within M79, choose M79.2 (Neuralgia and neuritis, unspecified) only when documentation doesn't support a more specific option: rheumatism, unspecified (M79.0), myalgia (M79.1), panniculitis, unspecified (M79.3), hypertrophy of (infrapatellar) fat pad (M79.4), residual foreign body in soft tissue (M79.5), pain in limb, hand, foot, fingers and toes (M79.6), Fibromyalgia (M79.7), other specified soft tissue disorders (M79.8) and 2 more.
Don't report M79.2 together with the conditions in its Excludes1 note: brachial radiculitis NOS (M54.1), lumbosacral radiculitis NOS (M54.1), mononeuropathies (G56-G58), radiculitis NOS (M54.1) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific neuralgia codes (official index)
- accessory (nerve) G52.8 — Disorders of other specified cranial nerves
- acoustic (nerve)
- auditory (nerve)
- ciliary G44.009 — Cluster headache syndrome, unspecified, not intractable
- intractable G44.001 — Cluster headache syndrome, unspecified, intractable
- not intractable G44.009 — Cluster headache syndrome, unspecified, not intractable
- cranial
- nerve
- fifth or trigeminal
- postherpetic, postzoster B02.29 — Other postherpetic nervous system involvement
- ear
- facialis vera G51.1 — Geniculate ganglionitis
- Fothergill's
- glossopharyngeal (nerve) G52.1 — Disorders of glossopharyngeal nerve
- Horton's G44.099 — Other trigeminal autonomic cephalgias (TAC), not intractable
- intractable G44.091 — Other trigeminal autonomic cephalgias (TAC), intractable
- not intractable G44.099 — Other trigeminal autonomic cephalgias (TAC), not intractable
- Hunt's B02.21 — Postherpetic geniculate ganglionitis
- hypoglossal (nerve) G52.3 — Disorders of hypoglossal nerve
- infraorbital
- malarial
- migrainous G44.009 — Cluster headache syndrome, unspecified, not intractable
- intractable G44.001 — Cluster headache syndrome, unspecified, intractable
- not intractable G44.009 — Cluster headache syndrome, unspecified, not intractable
- Morton's G57.6 — Lesion of plantar nerve
- nerve, cranial
- nose G52.0 — Disorders of olfactory nerve
- occipital M54.81 — Occipital neuralgia
- olfactory G52.0 — Disorders of olfactory nerve
- penis N48.9 — Disorder of penis, unspecified
- perineum R10.20 — Pelvic and perineal pain unspecified side
- bilateral R10.23 — Pelvic and perineal pain bilateral
- left R10.22 — Pelvic and perineal pain left side
- right R10.21 — Pelvic and perineal pain right side
- postherpetic NEC B02.29 — Other postherpetic nervous system involvement
- trigeminal B02.22 — Postherpetic trigeminal neuralgia
- pubic region R10.20 — Pelvic and perineal pain unspecified side
- bilateral R10.23 — Pelvic and perineal pain bilateral
- left R10.22 — Pelvic and perineal pain left side
- right R10.21 — Pelvic and perineal pain right side
- scrotum R10.20 — Pelvic and perineal pain unspecified side
- Sluder's G44.89 — Other headache syndrome
- specified nerve NEC G58.8 — Other specified mononeuropathies
- spermatic cord R10.20 — Pelvic and perineal pain unspecified side
- sphenopalatine (ganglion) G90.09 — Other idiopathic peripheral autonomic neuropathy
- trifacial
- trigeminal G50.0 — Trigeminal neuralgia
- postherpetic, postzoster B02.22 — Postherpetic trigeminal neuralgia
- vagus (nerve) G52.2 — Disorders of vagus nerve
- writer's F48.8 — Other specified nonpsychotic mental disorders
- organic G25.89 — Other specified extrapyramidal and movement disorders
Don't confuse with (Excludes1 for M79.2)
Common questions about neuralgia ICD-10 codes
What is the ICD-10 code for neuralgia?
- M79.2 — Neuralgia and neuritis, unspecified. More specific codes apply when the documentation supports them: G52.8, G44.009, G44.001, G44.009 and others below.
What is the ICD-10 code for accessory neuralgia?
- G52.8 — Disorders of other specified cranial nerves.
What is the ICD-10 code for ciliary neuralgia?
- G44.009 — Cluster headache syndrome, unspecified, not intractable.
What is the ICD-10 code for facialis vera neuralgia?
- G51.1 — Geniculate ganglionitis.
What is the ICD-10 code for glossopharyngeal neuralgia?
- G52.1 — Disorders of glossopharyngeal nerve.
What is the ICD-10 code for horton's neuralgia?
- G44.099 — Other trigeminal autonomic cephalgias (TAC), not intractable.
What is the ICD-10 code for hunt's neuralgia?
- B02.21 — Postherpetic geniculate ganglionitis.
Is M79.2 billable?
- Yes. M79.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M79.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M79.2 as a principal diagnosis.
Is M79.2 a CC or MCC?
- No. M79.2 is neither a CC nor an MCC under MS-DRG v44.0.