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ICD-10-CM 2027 diagnosis code

G89Pain, not elsewhere classified

Not billable — use a more specific code

G89 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G89

G89 is the ICD-10-CM diagnosis code for pain, not elsewhere classified. It belongs to block G89-G99 (other disorders of the nervous system) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: G89.0 (syndrome), G89.1 (classified), G89.2 (classified), G89.3 ((chronic)) and G89.4 (syndrome).

Don't report G89 together with the conditions in its Excludes1 note: generalized pain NOS (R52), pain disorders exclusively related to psychological factors (F45.41) and pain NOS (R52).

The conditions in its Excludes2 note aren't part of G89, but may be coded alongside it if the patient has both: atypical face pain (G50.1), headache syndromes (G44.-), abdomen pain (R10.-), back pain (M54.9) and 22 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under G89

Coding notes

Excludes1Not coded here — never report together with this code
  • generalized pain NOS (R52)
  • pain disorders exclusively related to psychological factors (F45.41)
  • pain NOS (R52)
Excludes2Not included here — may be reported together if both conditions exist
Code alsoTwo codes may be needed; sequencing depends on circumstances
  • related psychological factors associated with pain (F45.42)

Notes that apply from higher levels

Instructions written at a parent level also apply to G89.

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

Codes whose notes reference G89

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about G89

Is G89 billable?

No. G89 is a header code. Report one of its more specific subcodes instead.