ICD-10-CM 2027 diagnosis code
G89.2Chronic pain, not elsewhere classified
G89.2 is a header code, so it can't be reported by itself. Choose one of the 4 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 G89.2
G89.2 is the ICD-10-CM diagnosis code for chronic pain, not elsewhere classified. It belongs to category G89 (pain, not elsewhere classified), 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 4 subcodes must be used instead.
Within G89 (pain, not elsewhere classified), G89.2 is specifically for chronic pain, not elsewhere classified. Related codes cover central pain syndrome (G89.0), acute pain, not elsewhere classified (G89.1), neoplasm related pain (acute) (chronic) (G89.3) and chronic pain syndrome (G89.4).
To report this condition, pick the subcode that matches the documentation: G89.21 (trauma), G89.22 (pain), G89.28 (pain) and G89.29 (pain).
Don't report G89.2 together with the conditions in its Excludes1 note: causalgia, lower limb (G57.7-), causalgia, upper limb (G56.4-), central pain syndrome (G89.0), chronic pain syndrome (G89.4) and 4 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 G89.2
Coding notes
- causalgia, lower limb (G57.7-)
- causalgia, upper limb (G56.4-)
- central pain syndrome (G89.0)
- chronic pain syndrome (G89.4)
- complex regional pain syndrome II, lower limb (G57.7-)
- complex regional pain syndrome II, upper limb (G56.4-)
- neoplasm related chronic pain (G89.3)
- reflex sympathetic dystrophy (G90.5-)
Notes that apply from higher levels
Instructions written at a parent level also apply to G89.2.
› From G89 Pain, not elsewhere classified
- 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-)
- related psychological factors associated with pain (F45.42)
Broader instructions also apply from Chapter 6: Diseases of the nervous system.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about G89.2
Is G89.2 billable?
- No. G89.2 is a header code. Report one of its more specific subcodes instead.