G36.0
Neuromyelitis optica [Devic]
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 10 never code together
G00-G99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
G36.0code
Inclusion terms
- Demyelination in optic neuritis
Index entries leading here 8
- Demyelination, demyelinization
- in optic neuritis G36.0
- Disease, diseased — see also Syndrome
- Devic's G36.0
- Devic's disease G36.0
- Neuritis (rheumatoid) M79.2
- Myelitis (acute) (ascending) (childhood) (chronic) (descending) (diffuse) (disseminated) (idiopathic) (pressure) (progressive) (spinal cord) (subacute) G04.91
- optic neuritis in G36.0
- Neuroencephalomyelopathy, optic G36.0
- Neuromyelitis G36.9
- optica G36.0
- Ophthalmoneuromyelitis G36.0
Alongside this code 3 same parent — G36
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.