ICD-10-CM K51.5 is the diagnosis code for Left sided colitis. This code falls under the section "Noninfective enteritis and colitis" within Chapter 11 — Diseases of the digestive system (K00-K95). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where K51.5 sits in the ICD-10-CM classification helps ensure proper coding:
No, K51.5 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
K51.5 is the ICD-10-CM diagnosis code for "Left sided colitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of K51.5 is K51 ("Ulcerative colitis"). K51.5 provides a more specific classification within this category.
K51.5 is located in Section K50-K52 — "Noninfective enteritis and colitis" within Chapter 11 of the ICD-10-CM Tabular List.
K51.5 has 2 sub-code(s) that provide more specific detail: K51.50, K51.51.
Use K51.5 when the patients documented diagnosis matches "Left sided colitis" 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 Left sided colitis is K51.5.
No, K51.5 is non-billable. Use a more specific sub-code for primary diagnosis billing.
K51.5 is in Chapter 11 of the ICD-10-CM Tabular List.
Yes, K51.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.