K56.3 – Gallstone ileus

ICD-10-CM 2027 diagnosis code · Other diseases of intestines

Billable code

ICD-10-CM code K56.3

Code: K56.3 (claims format: K563)
Description: Gallstone ileus
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 11. Diseases of the digestive system (K00-K95)
Block: K55-K64 Other diseases of intestines
Parent codes: K56

Notes for K56.3

Applicable to:

Obstruction of intestine by gallstone

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

K56 – Paralytic ileus and intestinal obstruction without hernia

Excludes1 (not coded here):

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-)

Excludes2 (not included here):

stenosis of anus or rectum (K62.4)

Index terms for K56.3

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in K56

K56.0 – Paralytic ileusBillable
K56.1 – IntussusceptionBillable
K56.2 – VolvulusBillable
K56.4 – Other impaction of intestineHeader
K56.5 – Intestinal adhesions [bands] with obstruction (postinfection)Header
K56.6 – Other and unspecified intestinal obstructionHeader
K56.7 – Ileus, unspecifiedBillable

Frequently asked questions

What is ICD-10 code K56.3?

K56.3 is the ICD-10-CM code for gallstone ileus, in the block K55-K64 (Other diseases of intestines).

Is K56.3 a billable code?

Yes. K56.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K56.3 belong to?

It belongs to category K56 – Paralytic ileus and intestinal obstruction without hernia.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.