2021 ICD-10-CM Diagnosis Code G43.A

Cyclical vomiting

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • G43.A should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM G43.A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of G43.A - other international versions of ICD-10 G43.A may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as G43.A. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • cyclical vomiting syndrome unrelated to migraine (
    ICD-10-CM Diagnosis Code R11.15

    Cyclical vomiting syndrome unrelated to migraine

      2020 - New Code 2021 Billable/Specific Code
    Applicable To
    • Cyclic vomiting syndrome NOS
    • Persistent vomiting
    Type 1 Excludes
    • cyclical vomiting in migraine (G43.A-)
    Type 2 Excludes
    • bulimia nervosa (F50.2)
    • diabetes mellitus due to underlying condition (E08.-)
    R11.15
    )
The following code(s) above G43.A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G43.A:
  • G00-G99
    2021 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • 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)
    Diseases of the nervous system
  • G43
    ICD-10-CM Diagnosis Code G43

    Migraine

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Note
    • the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
    Type 1 Excludes
    Type 2 Excludes
    • headache syndromes (G44.-)
    Use Additional
    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
    Migraine
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to G43.A:
  • Type 1 Excludes: R11
    , R11.15
    ICD-10-CM Diagnosis Code R11

    Nausea and vomiting

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • cyclical vomiting associated with migraine (G43.A-)
    • excessive vomiting in pregnancy (O21.-)
    • hematemesis (K92.0)
    • neonatal hematemesis (P54.0)
    • newborn vomiting (P92.0-)
    • psychogenic vomiting (F50.89)
    • vomiting associated with bulimia nervosa (F50.2)
    • vomiting following gastrointestinal surgery (K91.0)
    ICD-10-CM Diagnosis Code R11.15

    Cyclical vomiting syndrome unrelated to migraine

      2020 - New Code 2021 Billable/Specific Code
    Applicable To
    • Cyclic vomiting syndrome NOS
    • Persistent vomiting
    Type 1 Excludes
    • cyclical vomiting in migraine (G43.A-)
    Type 2 Excludes
    • bulimia nervosa (F50.2)
    • diabetes mellitus due to underlying condition (E08.-)
ICD-10-CM Codes Adjacent To G43.A
G43.61 Persistent migraine aura with cerebral infarction, intractable
G43.611 …… with status migrainosus
G43.619 …… without status migrainosus
G43.7 Chronic migraine without aura
G43.70 Chronic migraine without aura, not intractable
G43.701 …… with status migrainosus
G43.709 …… without status migrainosus
G43.71 Chronic migraine without aura, intractable
G43.711 …… with status migrainosus
G43.719 …… without status migrainosus
G43.A Cyclical vomiting
G43.A0 …… in migraine, not intractable
G43.A1 …… in migraine, intractable
G43.B Ophthalmoplegic migraine
G43.B0 …… not intractable
G43.B1 …… intractable
G43.C Periodic headache syndromes in child or adult
G43.C0 …… not intractable
G43.C1 …… intractable
G43.D Abdominal migraine
G43.D0 …… not intractable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.