K55.021Billable
Focal (segmental) acute infarction of small intestine
- Chapter
- 11. Diseases of the digestive system
- Category
- K55
- Effective date
- October 1, 2026
Related codes in category K55
K55Vascular disorders of intestineK55.0Acute vascular disorders of intestineK55.01Acute (reversible) ischemia of small intestineK55.011Focal (segmental) acute ischemia of small intestineYesK55.012Diffuse acute (reversible) ischemia of small intestineYesK55.019Acute ischemia of small intestine, extent unspecifiedYesK55.02Acute infarction of small intestineK55.022Diffuse acute infarction of small intestineYesK55.029Acute infarction of small intestine, extent unspecifiedYesK55.03Acute (reversible) ischemia of large intestineK55.031Focal (segmental) acute ischemia of large intestineYesK55.032Diffuse acute (reversible) ischemia of large intestineYes
Frequently asked questions
What is ICD-10 code K55.021?
K55.021 is an ICD-10-CM diagnosis code for Focal (segmental) acute infarction of small intestine.
Is K55.021 a billable code?
Yes. K55.021 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is K55.021 in?
K55.021 falls under Chapter 11: Diseases of the digestive system.
When did K55.021 become effective?
K55.021 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to K55.021?
K55.021 belongs to category K55, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.