AutoICD API

G44.5

Non-billable

Complicated headache syndromes

Complicated headache syndromes

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

G44

Child Codes

4

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)
  • atypical facial pain (G50.1)
  • headache due to lumbar puncture (G97.1)
  • migraines (G43.-)
  • trigeminal neuralgia (G50.0)

Child Codes (4)

G44.51

Hemicrania continua

BillableG44.52

New daily persistent headache (NDPH)

BillableG44.53

Primary thunderclap headache

BillableG44.59

Other complicated headache syndrome

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code G44.5?

ICD-10-CM code G44.5 represents "Complicated headache syndromes". It is a non-billable header code — use a more specific child code for billing purposes.

Is G44.5 a billable code?

No, G44.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under G44.5.

What chapter is G44.5 in?

G44.5 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).

What codes cannot be used with G44.5?

G44.5 has Excludes1 notes indicating codes that cannot be used together with it, including: headache NOS (R51.9).

What are the subcategories under G44.5?

G44.5 has 4 child codes, including: G44.51 (Hemicrania continua), G44.52 (New daily persistent headache (NDPH)), G44.53 (Primary thunderclap headache), G44.59 (Other complicated headache syndrome).

What are the UMLS CUIs for G44.5?

G44.5 is linked to 1 UMLS Concept Unique Identifier: C2349428. 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.