AutoICD API

G43.9

Non-billable

Migraine, unspecified

Migraine, unspecified

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

G40-G47

Parent Code

G43

Child Codes

2

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)
  • headache syndromes (G44.-)

Use Additional Code

Additional codes that should follow this code

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Child Codes (2)

G43.90

Migraine, unspecified, not intractable

G43.91

Migraine, unspecified, intractable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code G43.9?

ICD-10-CM code G43.9 represents "Migraine, unspecified". It is a non-billable header code — use a more specific child code for billing purposes.

Is G43.9 a billable code?

No, G43.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under G43.9.

What chapter is G43.9 in?

G43.9 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).

What codes cannot be used with G43.9?

G43.9 has Excludes1 notes indicating codes that cannot be used together with it, including: headache NOS (R51.9); lower half migraine (G44.00).

What are the subcategories under G43.9?

G43.9 has 2 child codes, including: G43.90 (Migraine, unspecified, not intractable), G43.91 (Migraine, unspecified, intractable).

Are additional codes required with G43.9?

Yes, when using G43.9 you should also code: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).

What are the UMLS CUIs for G43.9?

G43.9 is linked to 1 UMLS Concept Unique Identifier: C0149931. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.