K56.3
Gallstone ileus
HCC risk adjustment mapping
CMS-HCC V28
Intestinal Obstruction/Perforation
CMS-HCC ESRD V24
Intestinal Obstruction/Perforation
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Obstruction of intestine by gallstone
congenital stricture or stenosis of intestine (Q41-Q42) cystic fibrosis with meconium ileus (E84.11) ischemic stricture of intestine (K55.1) meconium ileus NOS (P76.0) neonatal intestinal obstructions classifiable to P76.- obstruction of duodenum (K31.5) postprocedural intestinal obstruction (K91.3-)
stenosis of anus or rectum (K62.4)
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 K56.3
FY 2026 ›Find K56.3 in the alphabetic index
7 index paths lead to this code
- Gallstone › causing intestinal obstruction
- Ileus › due to gallstone
- Ileus › gallstone
- Impaction, impacted › bowel, colon, rectum › by gallstone
- Impaction, impacted › gallstone › in intestine, with obstruction
- Impaction, impacted › intestine NEC › gallstone, with ileus
- Obstruction, obstructed, obstructive › intestine › by gallstone