G89.18 Other acute postprocedural pain

The ICD-10-CM code for Other acute postprocedural pain is G89.18 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

6: Diseases of the nervous system (G00-G99)

Section

G89-G99: Other disorders of the nervous system (G89-G99)

Category G89

13 codes (10 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to G89.18:

• Pain (s) › postprocedural NOS
• Pain (s) › postoperative NOS
• Pain (s) › acute › postprocedural NEC

Inclusion Terms

• Postoperative pain NOS
• Postprocedural pain NOS

U.S. Hospital Utilization

• An estimated 164,650 U.S. inpatient stays in 2023 included G89.18 among the documented diagnoses.
• 10,630 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Postop pain w/ complication: code Chapter 19; add G89 for acute/chronic

(b) Postoperative pain associated with specific postoperative complication Postoperative pain associated with a specific postoperative complication (such as painful wire sutures) is assigned to the appropriate code(s) found in Chapter 19, Injury, poisoning, and certain other consequences of external causes. If appropriate, use additional code(s) from category G89 to identify acute or chronic pain (G89.18 or G89.28).

Pain due to medical devices: code Chapter 19 + add G89

2) Pain due to medical devices Pain associated with devices, implants or grafts left in a surgical site (for example painful hip prosthesis) is assigned to the appropriate code(s) found in Chapter 19, Injury, poisoning, and certain other consequences of external causes. Specific codes for pain due to medical devices are found in the T code section of the ICD-10-CM. Use additional code(s) from category G89 to identify acute or chronic pain due to presence of the device, implant or graft (G89.18 or G89.28).

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)