G04.82 vs G37.3
G04.82 (Acute flaccid myelitis) compared with G37.3 (Acute transverse myelitis in demyelinating disease of central nervous system), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G04.82 carries an Excludes1 note covering G37.3: “transverse myelitis (G37.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Yes, when both are documented. G04.82 carries an Excludes2 note covering G37.3: “acute transverse myelitis (G37.3)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
No — do not report together. G37.3 carries an Excludes1 note covering G04.82: “acute flaccid myelitis (G04.82)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G04.82Acute flaccid myelitis | G37.3Acute transverse myelitis in demyelinating disease of central nervous system | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | — | Acute transverse myelitis in demyelinating disease of central nervous system is a billable ICD-10-CM diagnosis code (G37.3). |
| Includes | acute ascending myelitis meningoencephalitis meningomyelitis | Acute transverse myelitis NOS Acute transverse myelopathy |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources