The ICD-10-CM code for unspecified abdominal pain is R10.9.It is billable. It is valid for FY 2026. And it should be your last pick, not your first. If the note names a location (right lower quadrant, epigastric, flank, and so on), use that more specific R10 code. If a confirmed disease explains the pain appendicitis, diverticulitis, gastritis … Continue reading Abdominal Pain ICD-10: R10.9 & Full R10 Codes (2026)