K55.049 – Acute infarction of large intestine, extent unspecified

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

Billable code

ICD-10-CM code K55.049

Code: K55.049 (claims format: K55049)
Description: Acute infarction of large intestine, extent unspecified
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: K55 › K55.0 › K55.04

Notes inherited from parent codes

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

K55 – Vascular disorders of intestine

Excludes1 (not coded here):

necrotizing enterocolitis of newborn (P77.-)

Excludes2 (not included here):

angioectasia (angiodysplasia) duodenum (K31.81-)

K55.0 – Acute vascular disorders of intestine

Applicable to:

Infarction of appendices epiploicae
Mesenteric (artery) (vein) embolism
Mesenteric (artery) (vein) infarction
Mesenteric (artery) (vein) thrombosis

K55.04 – Acute infarction of large intestine

Applicable to:

Gangrene of large intestine
Necrosis of large intestine

Index terms for K55.049

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

Related codes in K55.04

Frequently asked questions

What is ICD-10 code K55.049?

K55.049 is the ICD-10-CM code for acute infarction of large intestine, extent unspecified, in the block K55-K64 (Other diseases of intestines).

Is K55.049 a billable code?

Yes. K55.049 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K55.049 belong to?

It belongs to category K55 – Vascular disorders of intestine.

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.