ICD-9-CM Diagnosis Code 789.66
Diagnosis Code: 789.66 (Raw: 78966)
Description: Abdominal tenderness, epigastric
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 789.66 is designated for Abdominal tenderness, epigastric. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.