1. ICD-10-CM Codes
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2. G00-G99
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3. G40-G47
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4. G44-
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5. 2023 ICD-10-CM Diagnosis Code G44

2023 ICD-10-CM Diagnosis Code G44

Other headache syndromes

2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

• G44 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• The 2023 edition of ICD-10-CM G44 became effective on October 1, 2022.
• This is the American ICD-10-CM version of G44 - other international versions of ICD-10 G44 may differ.

• 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

• Type 2 Excludes: G43
  , G89
  ICD-10-CM Diagnosis Code G43

  Migraine

  2016 2017 2018 2019 2020 2021 2022 2023 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

  • headache NOS (R51.9)
  • lower half migraine (G44.00)

  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)
  ICD-10-CM Diagnosis Code G89

  Pain, not elsewhere classified

  2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

  Code Also

  • related psychological factors associated with pain (F45.42)

  Type 1 Excludes

  • generalized pain NOS (R52)
  • pain disorders exclusively related to psychological factors (F45.41)
  • pain NOS (R52)

  Type 2 Excludes

  • atypical face pain (G50.1)
  • headache syndromes (G44.-)
  • localized pain, unspecified type - code to pain by site, such as:
  • abdomen pain (R10.-)
  • back pain (M54.9)
  • breast pain (N64.4)
  • chest pain (R07.1-R07.9)
  • ear pain (H92.0-)
  • eye pain (H57.1)
  • headache (R51.9)
  • joint pain (M25.5-)
  • limb pain (M79.6-)
  • lumbar region pain (M54.5-)
  • painful urination (R30.9)
  • pelvic and perineal pain (R10.2)
  • shoulder pain (M25.51-)
  • spine pain (M54.-)
  • throat pain (R07.0)
  • tongue pain (K14.6)
  • tooth pain (K08.8)
  • renal colic (N23)
  • migraines (G43.-)
  • myalgia (M79.1-)
  • pain from prosthetic devices, implants, and grafts (T82.84, T83.84, T84.84, T85.84-)
  • phantom limb syndrome with pain (G54.6)
  • vulvar vestibulitis (N94.810)
  • vulvodynia (N94.81-)

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