2023 ICD-10-CM Diagnosis Code G44.329

Chronic post-traumatic headache, not intractable

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • G44.329 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM G44.329 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of G44.329 - other international versions of ICD-10 G44.329 may differ.
Applicable To
  • Chronic post-traumatic headache NOS
The following code(s) above G44.329 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 G44.329:
  • G00-G99
    2023 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
  • G44
    ICD-10-CM Diagnosis Code G44

    Other headache syndromes

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    • atypical facial pain (G50.1)
    • headache due to lumbar puncture (G97.1)
    • migraines (G43.-)
    • trigeminal neuralgia (G50.0)
    Other headache syndromes
Approximate Synonyms
  • Chronic post traumatic headache
ICD-10-CM G44.329 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 102 Headaches with mcc
  • 103 Headaches without mcc

Convert G44.329 to ICD-9-CM

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
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to G44.329:
  • Headache R51.9
    ICD-10-CM Diagnosis Code R51.9

    Headache, unspecified

      2021 - New Code 2022 2023 Billable/Specific Code
    Applicable To
    • Facial pain NOS
    • post-traumatic G44.309
      ICD-10-CM Diagnosis Code G44.309

      Post-traumatic headache, unspecified, not intractable

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Post-traumatic headache NOS
      • chronic G44.329
        • not intractable G44.329

ICD-10-CM Codes Adjacent To G44.329
G44.229 …… not intractable
G44.3 Post-traumatic headache
G44.30 Post-traumatic headache, unspecified
G44.301 …… intractable
G44.309 …… not intractable
G44.31 Acute post-traumatic headache
G44.311 …… intractable
G44.319 …… not intractable
G44.32 Chronic post-traumatic headache
G44.321 …… intractable
G44.329 …… not intractable
G44.4 Drug-induced headache, not elsewhere classified
G44.40 …… not intractable
G44.41 …… intractable
G44.5 Complicated headache syndromes
G44.51 Hemicrania continua
G44.52 New daily persistent headache (NDPH)
G44.53 Primary thunderclap headache
G44.59 Other complicated headache syndrome
G44.8 Other specified headache syndromes
G44.81 Hypnic headache

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