ICD-10-CM > R00-R99 > R10-R19 > R10 > R10.3 R10.3 Pain localized to other parts of lower abdomen Non-Billable/Non-Specific Type 2 Excludes pain localized to flank (R10.A-)pelvic and perineal pain (R10.2-) Codes R10.30Lower abdominal pain, unspecifiedR10.31Right lower quadrant painR10.32Left lower quadrant painR10.33Periumbilical pain