Other symptoms and signs involving the digestive system and abdomen (R19) ICD-10-CM
The R19 code range covers other symptoms and signs involving the digestive system and abdomen with 30 ICD-10-CM diagnosis codes. 26 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- acute abdomen R10.0
Codes in the R19 Range 30 codes · 26 billable
- R19 Other symptoms and signs involving the digestive system and abdomenNon-billable
- R19.0 Intra-abdominal and pelvic swelling, mass and lumpNon-billable
- R19.00 Intra-abdominal and pelvic swelling, mass and lump, unspecified site
- R19.01 Right upper quadrant abdominal swelling, mass and lump
- R19.02 Left upper quadrant abdominal swelling, mass and lump
- R19.03 Right lower quadrant abdominal swelling, mass and lump
- R19.04 Left lower quadrant abdominal swelling, mass and lump
- R19.05 Periumbilic swelling, mass or lump
- R19.06 Epigastric swelling, mass or lump
- R19.07 Generalized intra-abdominal and pelvic swelling, mass and lump
- R19.09 Other intra-abdominal and pelvic swelling, mass and lump
- R19.1 Abnormal bowel soundsNon-billable
- R19.11 Absent bowel sounds
- R19.12 Hyperactive bowel sounds
- R19.15 Other abnormal bowel sounds
- R19.2 Visible peristalsis
- R19.3 Abdominal rigidityNon-billable
- R19.30 Abdominal rigidity, unspecified site
- R19.31 Right upper quadrant abdominal rigidity
- R19.32 Left upper quadrant abdominal rigidity
- R19.33 Right lower quadrant abdominal rigidity
- R19.34 Left lower quadrant abdominal rigidity
- R19.35 Periumbilic abdominal rigidity
- R19.36 Epigastric abdominal rigidity
- R19.37 Generalized abdominal rigidity
- R19.4 Change in bowel habit
- R19.5 Other fecal abnormalities
- R19.6 Halitosis
- R19.7 Diarrhea, unspecified
- R19.8 Other specified symptoms and signs involving the digestive system and abdomen
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R19 range.
Diarrhea
An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.
Diarrhea Virus 1, Bovine Viral
A species of PESTIVIRUS causing systemic infections (BOVINE VIRUS DIARRHEA-MUCOSAL DISEASE) in cattle and some other cloven-hoofed animals. There are several strains and two biotypes: cytopathic (rare) and non-cytopathic. Infections range from clinically inapparent to severe, but do not correlate with biotypes.
Diarrhea Virus 2, Bovine Viral
A species of PESTIVIRUS causing systemic infections including BOVINE VIRUS DIARRHEA-MUCOSAL DISEASE and BOVINE HEMORRHAGIC SYNDROME in cattle and some other cloven-hoofed animals. There are several strains and two biotypes: cytopathic (rare) and non-cytopathic. The severity of disease appears to be strain dependent. Cytopathogenic effects do not correlate with virulence as non-cytopathic BVDV-2 is associated only with Hemorrhagic Disease, Bovine.
Diarrhea Viruses, Bovine Viral
A group of viruses in the genus PESTIVIRUS, causing diarrhea, fever, oral ulcerations, hemorrhagic syndrome, and various necrotic lesions among cattle and other domestic animals. The two species (genotypes), BVDV-1 and BVDV-2 , exhibit antigenic and pathological differences. The historical designation, BVDV, consisted of both (then unrecognized) genotypes.
Diarrhea, Infantile
DIARRHEA occurring in infants from newborn to 24-months old.
Dysentery
Acute inflammation of the intestine associated with infectious DIARRHEA of various etiologies, generally acquired by eating contaminated food containing TOXINS, BIOLOGICAL derived from BACTERIA or other microorganisms. Dysentery is characterized initially by watery FECES then by bloody mucoid stools. It is often associated with ABDOMINAL PAIN; FEVER; and DEHYDRATION.
Feces
Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
Gagging
Contraction of the muscle of the PHARYNX caused by stimulation of sensory receptors on the SOFT PALATE, by psychic stimuli, or systemically by drugs.
Globus Sensation
A feeling of a lump in the throat that occurs between meals in the absence of other gastrointestinal and motility disorders (e.g., DYSPHAGIA; GASTROESOPHAGEAL REFLUX).
Halitosis
An offensive, foul breath odor resulting from a variety of causes such as poor oral hygiene, dental or oral infections, or the ingestion of certain foods.
Hyperalgesia
An increased sensation of pain or discomfort produced by minimally noxious stimuli due to damage to soft tissue containing NOCICEPTORS or injury to a peripheral nerve.
Hyperesthesia
Increased sensitivity to cutaneous stimulation due to a diminished threshold or an increased response to stimuli.
Hypesthesia
Absent or reduced sensitivity to cutaneous stimulation.
Nociceptors
Peripheral AFFERENT NEURONS which are sensitive to injuries or pain, usually caused by extreme thermal exposures, mechanical forces, or other noxious stimuli. Their cell bodies reside in the DORSAL ROOT GANGLIA. Their peripheral terminals (NERVE ENDINGS) innervate target tissues and transduce noxious stimuli via axons to the CENTRAL NERVOUS SYSTEM.
Phantom Limb
Perception of painful and nonpainful phantom sensations that occur following the complete or partial loss of a limb. The majority of individuals with an amputated extremity will experience the impression that the limb is still present, and in many cases, painful. (From Neurol Clin 1998 Nov;16(4):919-36; Brain 1998 Sep;121(Pt 9):1603-30)
Sensation
The process in which specialized SENSORY RECEPTOR CELLS transduce peripheral stimuli (physical or chemical) into NERVE IMPULSES which are then transmitted to the various sensory centers in the CENTRAL NERVOUS SYSTEM.
Sensation Disorders
Disorders of the special senses (i.e., VISION; HEARING; TASTE; and SMELL) or somatosensory system (i.e., afferent components of the PERIPHERAL NERVOUS SYSTEM).
Somatosensory Disorders
Disorders of sensory information received from superficial and deep regions of the body. The somatosensory system conveys neural impulses which pertain to proprioception, tactile sensation, thermal sensation, pressure sensation, and pain. PERIPHERAL NERVOUS SYSTEM DISEASES; SPINAL CORD DISEASES; and BRAIN DISEASES may be associated with impaired or abnormal somatic sensation.
Vertigo
An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear (EAR, INNER); VESTIBULAR NERVE; BRAINSTEM; or CEREBRAL CORTEX. Lesions in the TEMPORAL LOBE and PARIETAL LOBE may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)
About the R19 Code Range
The R19 codes in ICD-10-CM capture a range of nonspecific symptoms and signs related to the digestive system and abdomen that do not fit into other categories. These codes include various abdominal masses, abnormal bowel sounds, changes in bowel habits, and other digestive signs.
This section is used to report conditions such as intra-abdominal or pelvic masses (e.g., R19.0], with site-specific options like right upper quadrant mass (R19.01) or periumbilical swelling (R19.05). For example, a "rectal mass" would be coded under R19.00. It also covers abnormal bowel sounds, from absent (R19.11) to hyperactive (R19.12), and visible peristalsis (R19.2). Abdominal rigidity codes specify location or general involvement (e.g., R19.30 for unspecified site). Changes in stool appearance and frequency, including diarrhea (R19.7) and other fecal abnormalities (R19.5), are included here. The section further encompasses varied signs like halitosis (R19.6) and miscellaneous digestive symptoms (R19.8), aiding medical coders in accurately identifying diagnoses when symptoms are broad or unspecified.
Questions About This Page
How many billable codes are in the R19 range?
Of the 30 codes in this range, 26 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R19 range classify?
The range classifies other symptoms and signs involving the digestive system and abdomen. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
