K31.89
Other diseases of stomach and duodenum
Billable code
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Inherited from K31Other diseases of stomach and duodenum
Inherited from K20-K31Diseases of esophagus, stomach and duodenum
Excludes 2
hiatus hernia (K44.-)
Inherited from chapter 11Diseases of the digestive system
Excludes 2
certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Official Guidelines for K31.89
FY 2026 ›Find K31.89 in the alphabetic index
25 index paths lead to this code
- Achylia gastrica
- Fish hook stomach
- Gastroliths
- Gastromalacia
- Gastroptosis
- Gastrospasm
- Gastrostenosis
- Gastrosuccorrhea
- Hyperacidity
- Hyperchlorhydria
- Hypoacidity, gastric
- Hypochlorhydria
- Megalogastria
- Reichmann's disease or syndrome
- Rossbach's disease
- Subacidity, gastric
- Tachygastria
- Atonia, atony, atonic › stomach
- Calculus, calculi, calculous › stomach
- Congestion, congestive › duodenum
- Congestion, congestive › stomach
- Contraction, contracture, contracted › stomach
- Deformity › duodenal bulb
- Degeneration, degenerative › stomach
- Dilatation › stomach