ICD-10-CM 2027 diagnosis code

K55.0Acute vascular disorders of intestine

Not billable — use a more specific code

K55.0 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K55.0

K55.0 is the ICD-10-CM diagnosis code for acute vascular disorders of intestine. It belongs to category K55 (vascular disorders of intestine), block K55-K64 (other diseases of intestines) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within K55 (vascular disorders of intestine), K55.0 is specifically for acute vascular disorders of intestine. Related codes cover chronic vascular disorders of intestine (K55.1), Angiodysplasia of colon (K55.2), necrotizing enterocolitis (K55.3), other vascular disorders of intestine (K55.8) and vascular disorder of intestine, unspecified (K55.9).

To report this condition, pick the subcode that matches the documentation: K55.01 (intestine), K55.02 (intestine), K55.03 (intestine), K55.04 (intestine), K55.05 (unspecified) and K55.06 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

Specific codes under K55.0

Coding notes

Applicable toConditions and synonyms classified to this code

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

Notes that apply from higher levels

Instructions written at a parent level also apply to K55.0.

› From K55 Vascular disorders of intestine

Excludes1

necrotizing enterocolitis of newborn (P77.-)

Excludes2

angioectasia (angiodysplasia) duodenum (K31.81-)

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to K55.0.

Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › mesenteric (artery) (with gangrene) › vein (inferior) (superior)

Codes whose notes reference K55.0

I74Excludes2
I82Excludes2

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
FY2017 (effective 10/1/2016): Expanded — no longer billable

Common questions about K55.0

Is K55.0 billable?: No. K55.0 is a header code. Report one of its more specific subcodes instead.