Billable / Specific Code
ICD-10-CM K55.021 is the diagnosis code for Focal (segmental) acute infarction of small intestine. This code falls under the section "Other diseases of intestines" within Chapter 11 — Diseases of the digestive system (K00-K95). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where K55.021 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, K55.021 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
K55.021 is the ICD-10-CM diagnosis code for "Focal (segmental) acute infarction of small intestine". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of K55.021 is K55.02 ("Acute infarction of small intestine"). K55.021 provides a more specific classification within this category.
K55.021 is located in Section K55-K64 — "Other diseases of intestines" within Chapter 11 of the ICD-10-CM Tabular List.
Use K55.021 when the patients documented diagnosis matches "Focal (segmental) acute infarction of small intestine" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Focal (segmental) acute infarction of small intestine is K55.021.
Yes, K55.021 can be used as a primary diagnosis code since it is billable and specific.
K55.021 is in Chapter 11 of the ICD-10-CM Tabular List.
Yes, K55.021 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.