ICD-10-CM K91.850 is the diagnosis code for Pouchitis. This code falls under the section "Other diseases of the digestive system" 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.
Understanding where K91.850 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, K91.850 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
K91.850 is the ICD-10-CM diagnosis code for "Pouchitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of K91.850 is K91.85 ("Complications of intestinal pouch"). K91.850 provides a more specific classification within this category.
K91.850 is located in Section K90-K95 — "Other diseases of the digestive system" within Chapter 11 of the ICD-10-CM Tabular List.
Use K91.850 when the patients documented diagnosis matches "Pouchitis" 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 Pouchitis is K91.850.
Yes, K91.850 can be used as a primary diagnosis code since it is billable and specific.
K91.850 is in Chapter 11 of the ICD-10-CM Tabular List.
Yes, K91.850 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.