G72.3
Periodic paralysis
G72.3 (also written G723) is a billable ICD-10-CM diagnosis code for periodic paralysis. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category G72 (Other and unspecified myopathies). The Alphabetic Index lists it under 11 entries. Its coding notes include 6 Excludes1 entries and 8 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- paramyotonia congenita (of von Eulenburg) (G71.19)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
- 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)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Neuro Rehabilitation clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Inclusion terms
Conditions classified to this code.
- Familial periodic paralysis
- Hyperkalemic periodic paralysis (familial)
- Hypokalemic periodic paralysis (familial)
- Myotonic periodic paralysis (familial)
- Normokalemic paralysis (familial)
- Potassium sensitive periodic paralysis
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 11 entries
- Adynamia (episodica) (hereditary) (periodic)
- Cavare's disease (familial periodic paralysis)
- Disease, diseased, Cavare's (familial periodic paralysis)
- Disease, diseased, familial periodic paralysis
- Disease, diseased, Gamstorp's (adynamia episodica hereditaria)
- Gamstorp's disease (adynamia episodica hereditaria)
- Paralysis, paralytic (complete) (incomplete), familial (recurrent) (periodic)
- Paralysis, paralytic (complete) (incomplete), hyperkalemic periodic (familial)
- Paralysis, paralytic (complete) (incomplete), hypokalemic periodic
- Paralysis, paralytic (complete) (incomplete), normokalemic periodic
- Paralysis, paralytic (complete) (incomplete), periodic (familial) (hyperkalemic) (hypokalemic) (myotonic) (normokalemic) (potassium sensitive) (secondary)