ICD-10-CM Section · R10-R19
Symptoms and signs involving the digestive system and abdomen
120 codes in this section
120
Total Codes
99
Billable
21
Header (Non-Billable)
10
Top-Level Codes
About Section R10-R19
Section R10-R19 (R10-R19) covers symptoms and signs involving the digestive system and abdomen. It sits within the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified chapter (R00-R99). This section contains 120 ICD-10-CM codes, 99 billable diagnoses you can submit on a claim, and 21 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in R10-R19
Grouped by 3-character root code. Click any code for full detail.
R10
Abdominal and pelvic pain
50 subcodes
| R10.0 | Acute abdomen | Billable |
| R10.1 | Pain localized to upper abdomen | Header |
| R10.10 | Upper abdominal pain, unspecified | Billable |
| R10.11 | Right upper quadrant pain | Billable |
| R10.12 | Left upper quadrant pain | Billable |
| R10.13 | Epigastric pain | Billable |
| R10.2 | Pelvic and perineal pain | Header |
| R10.20 | Pelvic and perineal pain unspecified side | Billable |
| R10.21 | Pelvic and perineal pain right side | Billable |
| R10.22 | Pelvic and perineal pain left side | Billable |
| R10.23 | Pelvic and perineal pain bilateral | Billable |
| R10.24 | Suprapubic pain | Billable |
| R10.3 | Pain localized to other parts of lower abdomen | Header |
| R10.30 | Lower abdominal pain, unspecified | Billable |
| R10.31 | Right lower quadrant pain | Billable |
| R10.32 | Left lower quadrant pain | Billable |
| R10.33 | Periumbilical pain | Billable |
| R10.8 | Other abdominal pain | Header |
| R10.81 | Abdominal tenderness | Header |
| R10.811 | Right upper quadrant abdominal tenderness | Billable |
| R10.812 | Left upper quadrant abdominal tenderness | Billable |
| R10.813 | Right lower quadrant abdominal tenderness | Billable |
| R10.814 | Left lower quadrant abdominal tenderness | Billable |
| R10.815 | Periumbilic abdominal tenderness | Billable |
| R10.816 | Epigastric abdominal tenderness | Billable |
| R10.817 | Generalized abdominal tenderness | Billable |
| R10.819 | Abdominal tenderness, unspecified site | Billable |
| R10.82 | Rebound abdominal tenderness | Header |
| R10.821 | Right upper quadrant rebound abdominal tenderness | Billable |
| R10.822 | Left upper quadrant rebound abdominal tenderness | Billable |
| R10.823 | Right lower quadrant rebound abdominal tenderness | Billable |
| R10.824 | Left lower quadrant rebound abdominal tenderness | Billable |
| R10.825 | Periumbilic rebound abdominal tenderness | Billable |
| R10.826 | Epigastric rebound abdominal tenderness | Billable |
| R10.827 | Generalized rebound abdominal tenderness | Billable |
| R10.829 | Rebound abdominal tenderness, unspecified site | Billable |
| R10.83 | Colic | Billable |
| R10.84 | Generalized abdominal pain | Billable |
| R10.85 | Abdominal pain of multiple sites | Billable |
| R10.8A | Flank tenderness | Header |
| R10.8A1 | Right flank tenderness | Billable |
| R10.8A2 | Left flank tenderness | Billable |
| R10.8A3 | Suprapubic tenderness | Billable |
| R10.8A9 | Flank tenderness, unspecified | Billable |
| R10.9 | Unspecified abdominal pain | Billable |
| R10.A | Pain localized to flank | Header |
| R10.A0 | Flank pain, unspecified side | Billable |
| R10.A1 | Flank pain, right side | Billable |
| R10.A2 | Flank pain, left side | Billable |
| R10.A3 | Flank pain, bilateral | Billable |
R11
Nausea and vomiting
10 subcodes
| R11.0 | Nausea | Billable |
| R11.1 | Vomiting | Header |
| R11.10 | Vomiting, unspecified | Billable |
| R11.11 | Vomiting without nausea | Billable |
| R11.12 | Projectile vomiting | Billable |
| R11.13 | Vomiting of fecal matter | Billable |
| R11.14 | Bilious vomiting | Billable |
| R11.15 | Cyclical vomiting syndrome unrelated to migraine | Billable |
| R11.16 | Cannabis hyperemesis syndrome | Billable |
| R11.2 | Nausea with vomiting, unspecified | Billable |
R12
Heartburn
0 subcodes
R13
Aphagia and dysphagia
8 subcodes
| R13.0 | Aphagia | Billable |
| R13.1 | Dysphagia | Header |
| R13.10 | Dysphagia, unspecified | Billable |
| R13.11 | Dysphagia, oral phase | Billable |
| R13.12 | Dysphagia, oropharyngeal phase | Billable |
| R13.13 | Dysphagia, pharyngeal phase | Billable |
| R13.14 | Dysphagia, pharyngoesophageal phase | Billable |
| R13.19 | Other dysphagia | Billable |
R14
Flatulence and related conditions
4 subcodes
| R14.0 | Abdominal distension (gaseous) | Billable |
| R14.1 | Gas pain | Billable |
| R14.2 | Eructation | Billable |
| R14.3 | Flatulence | Billable |
R15
Fecal incontinence
4 subcodes
| R15.0 | Incomplete defecation | Billable |
| R15.1 | Fecal smearing | Billable |
| R15.2 | Fecal urgency | Billable |
| R15.9 | Full incontinence of feces | Billable |
R16
Hepatomegaly and splenomegaly, not elsewhere classified
3 subcodes
| R16.0 | Hepatomegaly, not elsewhere classified | Billable |
| R16.1 | Splenomegaly, not elsewhere classified | Billable |
| R16.2 | Hepatomegaly with splenomegaly, not elsewhere classified | Billable |
R17
Unspecified jaundice
0 subcodes
R19
Other symptoms and signs involving the digestive system and abdomen
29 subcodes
| R19.0 | Intra-abdominal and pelvic swelling, mass and lump | Header |
| R19.00 | Intra-abdominal and pelvic swelling, mass and lump, unspecified site | Billable |
| R19.01 | Right upper quadrant abdominal swelling, mass and lump | Billable |
| R19.02 | Left upper quadrant abdominal swelling, mass and lump | Billable |
| R19.03 | Right lower quadrant abdominal swelling, mass and lump | Billable |
| R19.04 | Left lower quadrant abdominal swelling, mass and lump | Billable |
| R19.05 | Periumbilic swelling, mass or lump | Billable |
| R19.06 | Epigastric swelling, mass or lump | Billable |
| R19.07 | Generalized intra-abdominal and pelvic swelling, mass and lump | Billable |
| R19.09 | Other intra-abdominal and pelvic swelling, mass and lump | Billable |
| R19.1 | Abnormal bowel sounds | Header |
| R19.11 | Absent bowel sounds | Billable |
| R19.12 | Hyperactive bowel sounds | Billable |
| R19.15 | Other abnormal bowel sounds | Billable |
| R19.2 | Visible peristalsis | Billable |
| R19.3 | Abdominal rigidity | Header |
| R19.30 | Abdominal rigidity, unspecified site | Billable |
| R19.31 | Right upper quadrant abdominal rigidity | Billable |
| R19.32 | Left upper quadrant abdominal rigidity | Billable |
| R19.33 | Right lower quadrant abdominal rigidity | Billable |
| R19.34 | Left lower quadrant abdominal rigidity | Billable |
| R19.35 | Periumbilic abdominal rigidity | Billable |
| R19.36 | Epigastric abdominal rigidity | Billable |
| R19.37 | Generalized abdominal rigidity | Billable |
| R19.4 | Change in bowel habit | Billable |
| R19.5 | Other fecal abnormalities | Billable |
| R19.6 | Halitosis | Billable |
| R19.7 | Diarrhea, unspecified | Billable |
| R19.8 | Other specified symptoms and signs involving the digestive system and abdomen | Billable |
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Verified against the CMS 2026 code set on May 31, 2026.
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