G43.A0 Cyclical vomiting, in migraine, not intractable

Instructional Notes:

G43.A0
Description: Cyclical vomiting, in migraine, not intractable
Inclusion Term:
- Cyclical vomiting, without refractory migraine
↓
G43.A
Description: Cyclical vomiting
Exclude1:
- cyclical vomiting syndrome unrelated to migraine (R11.15)
↓
G43
Description: Migraine
Exclude1:
- headache NOS (R51.9)
- lower half migraine (G44.00)
Exclude2:
- headache syndromes (G44.-)
Notes:
- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Use Additional Code:
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
↓
G40-G47
Description: Episodic and paroxysmal disorders (G40-G47)
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G00-G99
Description: Diseases of the nervous system
Exclude2:
- 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)