Symptoms and signs involving the digestive system and abdomen (R10-R19)
chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings
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Instructional notes
Excludes2: not included here, code separately if applicable
- congenital or infantile pylorospasm (Q40.0)
- gastrointestinal hemorrhage (K92.0-K92.2)
- intestinal obstruction (K56.-)
- newborn gastrointestinal hemorrhage (P54.0-P54.3)
- newborn intestinal obstruction (P76.-)
- pylorospasm (K31.3)
- signs and symptoms involving the urinary system (R30-R39)
- symptoms referable to female genital organs (N94.-)
- symptoms referable to male genital organs (N48-N50)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers when to report symptom, sign, and abnormal finding codes (R00-R99), plus specific rules for falls, coma scales, non-infectious SIRS, death NOS, and NIHSS scores.
- Use of symptom codes (page 75)
- Use of a symptom code with a definitive diagnosis code (page 75)
- Combination codes that include symptoms (page 75)
- Repeated falls (page 76)
- Coma (page 76)
- Functional quadriplegia (page 76)
- SIRS due to Non-Infectious Process (page 77)
- Death NOS (page 77)
All codes under R10-R19
R10-R19 can't be used on a claim. Pick a billable code below; grey headings group them.
- R10Abdominal and pelvic pain
- R10.0Acute abdomen
- R10.1Pain localized to upper abdomen
- R10.10Upper abdominal pain, unspecified
- R10.11Right upper quadrant pain
- R10.12Left upper quadrant pain
- R10.13Epigastric pain
- R10.2Pelvic and perineal pain
- R10.20Pelvic and perineal pain unspecified side
- R10.21Pelvic and perineal pain right side
- R10.22Pelvic and perineal pain left side
- R10.23Pelvic and perineal pain bilateral
- R10.24Suprapubic pain
- R10.3Pain localized to other parts of lower abdomen
- R10.30Lower abdominal pain, unspecified
- R10.31Right lower quadrant pain
- R10.32Left lower quadrant pain
- R10.33Periumbilical pain
- R10.8Other abdominal pain
- R10.81Abdominal tenderness
- R10.811Right upper quadrant abdominal tenderness
- R10.812Left upper quadrant abdominal tenderness
- R10.813Right lower quadrant abdominal tenderness
- R10.814Left lower quadrant abdominal tenderness
- R10.815Periumbilic abdominal tenderness
- R10.816Epigastric abdominal tenderness
- R10.817Generalized abdominal tenderness
- R10.819Abdominal tenderness, unspecified site
- R10.82Rebound abdominal tenderness
- R10.821Right upper quadrant rebound abdominal tenderness
- R10.822Left upper quadrant rebound abdominal tenderness
- R10.823Right lower quadrant rebound abdominal tenderness
- R10.824Left lower quadrant rebound abdominal tenderness
- R10.825Periumbilic rebound abdominal tenderness
- R10.826Epigastric rebound abdominal tenderness
- R10.827Generalized rebound abdominal tenderness
- R10.829Rebound abdominal tenderness, unspecified site
- R10.83Colic
- R10.84Generalized abdominal pain
- R10.85Abdominal pain of multiple sites
- R10.8AFlank tenderness
- R10.8A1Right flank tenderness
- R10.8A2Left flank tenderness
- R10.8A3Suprapubic tenderness
- R10.8A9Flank tenderness, unspecified
- R10.9Unspecified abdominal pain
- R10.APain localized to flank
- R10.A0Flank pain, unspecified side
- R10.A1Flank pain, right side
- R10.A2Flank pain, left side
- R10.A3Flank pain, bilateral
- R11Nausea and vomiting
- R11.0Nausea
- R11.1Vomiting
- R11.10Vomiting, unspecified
- R11.11Vomiting without nausea
- R11.12Projectile vomiting
- R11.13Vomiting of fecal matter
- R11.14Bilious vomiting
- R11.15Cyclical vomiting syndrome unrelated to migraine
- R11.16Cannabis hyperemesis syndrome
- R11.2Nausea with vomiting, unspecified
- R12Heartburn
- R13Aphagia and dysphagia
- R13.0Aphagia
- R13.1Dysphagia
- R13.10Dysphagia, unspecified
- R13.11Dysphagia, oral phase
- R13.12Dysphagia, oropharyngeal phase
- R13.13Dysphagia, pharyngeal phase
- R13.14Dysphagia, pharyngoesophageal phase
- R13.19Other dysphagia
- R14Flatulence and related conditions
- R14.0Abdominal distension (gaseous)
- R14.1Gas pain
- R14.2Eructation
- R14.3Flatulence
- R15Fecal incontinence
- R15.0Incomplete defecation
- R15.1Fecal smearing
- R15.2Fecal urgency
- R15.9Full incontinence of feces
- R16Hepatomegaly and splenomegaly, not elsewhere classified
- R16.0Hepatomegaly, not elsewhere classified
- R16.1Splenomegaly, not elsewhere classified
- R16.2Hepatomegaly with splenomegaly, not elsewhere classified
- R17Unspecified jaundice
- R18Ascites
- R18.0Malignant ascites
- R18.8Other ascites
- R19Other symptoms and signs involving the digestive system and abdomen
- R19.0Intra-abdominal and pelvic swelling, mass and lump
- R19.00Intra-abdominal and pelvic swelling, mass and lump, unspecified site
- R19.01Right upper quadrant abdominal swelling, mass and lump
- R19.02Left upper quadrant abdominal swelling, mass and lump
- R19.03Right lower quadrant abdominal swelling, mass and lump
- R19.04Left lower quadrant abdominal swelling, mass and lump
- R19.05Periumbilic swelling, mass or lump
- R19.06Epigastric swelling, mass or lump
- R19.07Generalized intra-abdominal and pelvic swelling, mass and lump
- R19.09Other intra-abdominal and pelvic swelling, mass and lump
- R19.1Abnormal bowel sounds
- R19.11Absent bowel sounds
- R19.12Hyperactive bowel sounds
- R19.15Other abnormal bowel sounds
- R19.2Visible peristalsis
- R19.3Abdominal rigidity
- R19.30Abdominal rigidity, unspecified site
- R19.31Right upper quadrant abdominal rigidity
- R19.32Left upper quadrant abdominal rigidity
- R19.33Right lower quadrant abdominal rigidity
- R19.34Left lower quadrant abdominal rigidity
- R19.35Periumbilic abdominal rigidity
- R19.36Epigastric abdominal rigidity
- R19.37Generalized abdominal rigidity
- R19.4Change in bowel habit
- R19.5Other fecal abnormalities
- R19.6Halitosis
- R19.7Diarrhea, unspecified
- R19.8Other specified symptoms and signs involving the digestive system and abdomen
R10-R19 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Abdominal Pain
Your abdomen extends from below your chest to your groin. Some people call it the stomach, but your abdomen contains many other important organs. Pain in the abdomen can come from any one of them. The pain may start somewhere else, such as your chest. Severe pain doesn't always mean a serious problem. Nor does mild pain mean a problem is not serious.
Read more about abdominal pain on MedlinePlusPelvic Pain
Pelvic pain occurs mostly in the lower abdomen area. The pain might be steady, or it might come and go. It can be a sharp and stabbing pain in a specific spot, or a dull pain that is spread out. If the pain is severe, it might get in the way of your daily activities.
Read more about pelvic pain on MedlinePlus