ICD-10-CM 2027
ICD-10 code for chronic pain
From the official ICD-10-CM alphabetic index entry “Pain (s) › chronic”. Page updated September 29, 2026.
About coding chronic pain
The ICD-10-CM code for chronic pain is G89.29 (Other chronic pain). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G89.29.
Within G89.2, choose G89.29 (Other chronic pain) only when documentation doesn't support a more specific option: chronic pain due to trauma (G89.21), chronic post-thoracotomy pain (G89.22) and other chronic postprocedural pain (G89.28).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific chronic pain codes (official index)
- associated with significant psychosocial dysfunction G89.4 — Chronic pain syndrome
- due to trauma G89.21 — Chronic pain due to trauma
- neoplasm related G89.3 — Neoplasm related pain (acute) (chronic)
- postoperative NEC G89.28 — Other chronic postprocedural pain
- postprocedural NEC G89.28 — Other chronic postprocedural pain
- post-thoracotomy G89.22 — Chronic post-thoracotomy pain
- specified NEC G89.29 — Other chronic pain
Common questions about chronic pain ICD-10 codes
What is the ICD-10 code for chronic pain?
- G89.29 — Other chronic pain. More specific codes apply when the documentation supports them: G89.4, G89.21, G89.3, G89.28 and others below.
What is the ICD-10 code for neoplasm related chronic pain?
- G89.3 — Neoplasm related pain (acute) (chronic).
What is the ICD-10 code for postoperative nec chronic pain?
- G89.28 — Other chronic postprocedural pain.
What is the ICD-10 code for postprocedural nec chronic pain?
- G89.28 — Other chronic postprocedural pain.
What is the ICD-10 code for post-thoracotomy chronic pain?
- G89.22 — Chronic post-thoracotomy pain.
Is G89.29 billable?
- Yes. G89.29 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G89.29 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G89.29 as a principal diagnosis.
Is G89.29 a CC or MCC?
- No. G89.29 is neither a CC nor an MCC under MS-DRG v44.0.