| R19 | Other symptoms and signs involving the digestive system and abdomen | NON-BILLABLE CODE |
| R19.0 | Intra-abdominal and pelvic swelling, mass and lump | NON-BILLABLE CODE |
| R19.00 | Intra-abdominal and pelvic swelling, mass and lump, unspecified site | BILLABLE CODE |
| R19.01 | Right upper quadrant abdominal swelling, mass and lump | BILLABLE CODE |
| R19.02 | Left upper quadrant abdominal swelling, mass and lump | BILLABLE CODE |
| R19.03 | Right lower quadrant abdominal swelling, mass and lump | BILLABLE CODE |
| R19.04 | Left lower quadrant abdominal swelling, mass and lump | BILLABLE CODE |
| R19.05 | Periumbilic swelling, mass or lump | BILLABLE CODE |
| R19.06 | Epigastric swelling, mass or lump | BILLABLE CODE |
| R19.07 | Generalized intra-abdominal and pelvic swelling, mass and lump | BILLABLE CODE |
| R19.09 | Other intra-abdominal and pelvic swelling, mass and lump | BILLABLE CODE |
| R19.1 | Abnormal bowel sounds | NON-BILLABLE CODE |
| R19.11 | Absent bowel sounds | BILLABLE CODE |
| R19.12 | Hyperactive bowel sounds | BILLABLE CODE |
| R19.15 | Other abnormal bowel sounds | BILLABLE CODE |
| R19.2 | Visible peristalsis | BILLABLE CODE |
| R19.3 | Abdominal rigidity | NON-BILLABLE CODE |
| R19.30 | Abdominal rigidity, unspecified site | BILLABLE CODE |
| R19.31 | Right upper quadrant abdominal rigidity | BILLABLE CODE |
| R19.32 | Left upper quadrant abdominal rigidity | BILLABLE CODE |
| R19.33 | Right lower quadrant abdominal rigidity | BILLABLE CODE |
| R19.34 | Left lower quadrant abdominal rigidity | BILLABLE CODE |
| R19.35 | Periumbilic abdominal rigidity | BILLABLE CODE |
| R19.36 | Epigastric abdominal rigidity | BILLABLE CODE |
| R19.37 | Generalized abdominal rigidity | BILLABLE CODE |
| R19.4 | Change in bowel habit | BILLABLE CODE |
| R19.5 | Other fecal abnormalities | BILLABLE CODE |
| R19.6 | Halitosis | BILLABLE CODE |
| R19.7 | Diarrhea, unspecified | BILLABLE CODE |
