ICD-10-CM 2027
ICD-10 code for ileus
From the official ICD-10-CM alphabetic index entry “Ileus (bowel) (colon) (inhibitory) (intestine)”. Page updated September 29, 2026.
About coding ileus
The ICD-10-CM code for ileus is K56.7 (Ileus, unspecified). The official index lists 18 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K56.7.
Within K56, choose K56.7 (Ileus, unspecified) only when documentation doesn't support a more specific option: paralytic ileus (K56.0), intussusception (K56.1), Volvulus (K56.2), Gallstone ileus (K56.3), other impaction of intestine (K56.4), intestinal adhesions [bands] with obstruction (postinfection) (K56.5) and other and unspecified intestinal obstruction (K56.6).
Don't report K56.7 together with the conditions in its Excludes1 note: obstructive ileus (K56.69-).
The conditions in its Excludes2 note aren't part of K56.7, but may be coded alongside it if the patient has both: intestinal obstruction with hernia (K40-K46).
More specific ileus codes (official index)
- adynamic K56.0 — Paralytic ileus
- due to gallstone (in intestine) K56.3 — Gallstone ileus
- duodenal (chronic) K31.5 — Obstruction of duodenum
- gallstone K56.3 — Gallstone ileus
- mechanical NEC K56.699 — Other intestinal obstruction unspecified as to partial versus complete obstruction
- meconium P76.0 — Meconium plug syndrome
- in cystic fibrosis E84.11 — Meconium ileus in cystic fibrosis
- meaning meconium plug (without cystic fibrosis) P76.0 — Meconium plug syndrome
- myxedema K59.89 — Other specified functional intestinal disorders
- neurogenic K56.0 — Paralytic ileus
- Hirschsprung's disease or megacolon Q43.1 — Hirschsprung's disease
- newborn
- due to meconium P76.0 — Meconium plug syndrome
- in cystic fibrosis E84.11 — Meconium ileus in cystic fibrosis
- meaning meconium plug (without cystic fibrosis) P76.0 — Meconium plug syndrome
- transitory P76.1 — Transitory ileus of newborn
- obstructive K56.699 — Other intestinal obstruction unspecified as to partial versus complete obstruction
- paralytic K56.0 — Paralytic ileus
- postoperative K91.89 — Other postprocedural complications and disorders of digestive system
Don't confuse with (Excludes1 for K56.7)
- obstructive ileus (K56.69-)
Common questions about ileus ICD-10 codes
What is the ICD-10 code for ileus?
- K56.7 — Ileus, unspecified. More specific codes apply when the documentation supports them: K56.0, K56.3, K31.5, K56.3 and others below.
What is the ICD-10 code for adynamic ileus?
- K56.0 — Paralytic ileus.
What is the ICD-10 code for duodenal ileus?
- K31.5 — Obstruction of duodenum.
What is the ICD-10 code for gallstone ileus?
- K56.3 — Gallstone ileus.
What is the ICD-10 code for mechanical nec ileus?
- K56.699 — Other intestinal obstruction unspecified as to partial versus complete obstruction.
What is the ICD-10 code for meconium ileus?
- P76.0 — Meconium plug syndrome.
What is the ICD-10 code for myxedema ileus?
- K59.89 — Other specified functional intestinal disorders.
Is K56.7 billable?
- Yes. K56.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K56.7 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K56.7 as a principal diagnosis.
Is K56.7 a CC or MCC?
- K56.7 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.