G50.1

Atypical facial pain

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

RxHCC V08

RXHCC168

Trigeminal and Postherpetic Neuralgia

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from G50Disorders of trigeminal nerve

Includes

disorders of 5th cranial nerve

Inherited from G50-G59Nerve, nerve root and plexus disorders

Excludes 1

current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region neuralgia NOS (M79.2) neuritis NOS (M79.2) peripheral neuritis in pregnancy (O26.82-) radiculitis NOS (M54.1-)

Inherited from chapter 6Diseases of the nervous system

Excludes 2

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)

Official Guidelines for G50.1

FY 2026 ›

I.C.6Chapter-specific guidanceChapter 6: Diseases of the Nervous System (G00-G99)

Subsections

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