G71.19 vs G72.3
G71.19 (Other specified myotonic disorders) compared with G72.3 (Periodic paralysis), 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. G72.3 carries an Excludes1 note covering G71.19: “paramyotonia congenita (of von Eulenburg) (G71.19)”
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
| G71.19Other specified myotonic disorders | G72.3Periodic paralysis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Other specified myotonic disorders is a billable ICD-10-CM diagnosis code (G71.19). | Periodic paralysis is a billable ICD-10-CM diagnosis code (G72.3). |
| Includes | Myotonia fluctuans Myotonia permanens Neuromyotonia [Isaacs] Paramyotonia congenita (of von Eulenburg) | Familial periodic paralysis Hyperkalemic periodic paralysis (familial) Hypokalemic periodic paralysis (familial) Myotonic periodic paralysis (familial) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources