R19.7 Diarrhea, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Diarrhea NOS

Excludes1 (never code together)

• functional diarrhea (K59.1)
• neonatal diarrhea (P78.3)
• psychogenic diarrhea (F45.8)

Applies from R19 Other symptoms and signs involving the digestive system and abdomen

Excludes1 (never code together)

• acute abdomen (R10.0)

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 787.91 Diarrhea (approximate)

Code annotations containing back-references to R19.7

Back-references to R19.7

• Type 1 Excludes: A09 Infectious gastroenteritis and colitis, unspecified ("diarrhea NOS (R19.7)")
• Use Additional: D89.81 Graft-versus-host disease ("diarrhea (R19.7)")
• Type 1 Excludes: K52.9 Noninfective gastroenteritis and colitis, unspecified ("diarrhea NOS (R19.7)")
• Type 1 Excludes: K59.1 Functional diarrhea ("diarrhea NOS (R19.7)")
• Use Additional: U07.0 Vaping-related disorder ("diarrhea (R19.7)")

Diagnosis Index entries for R19.7

• Diarrhea, diarrheal (disease) (infantile) (inflammatory)

Nearby codes

• 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 (this code)
• R19.8 Other specified symptoms and signs involving the digestive system and abdomen