ICD-10-CM K22.1 is the diagnosis code for Ulcer of esophagus. This code falls under the section "Diseases of esophagus, stomach and duodenum" 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.
The following conditions should never be coded at the same time as K22.1. They are mutually exclusive:
Understanding where K22.1 sits in the ICD-10-CM classification helps ensure proper coding:
No, K22.1 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
K22.1 is the ICD-10-CM diagnosis code for "Ulcer of esophagus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of K22.1 is K22 ("Other diseases of esophagus"). K22.1 provides a more specific classification within this category.
K22.1 is located in Section K20-K31 — "Diseases of esophagus, stomach and duodenum" within Chapter 11 of the ICD-10-CM Tabular List.
K22.1 has 2 sub-code(s) that provide more specific detail: K22.10, K22.11.
Use K22.1 when the patients documented diagnosis matches "Ulcer of esophagus" 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 Ulcer of esophagus is K22.1.
No, K22.1 is non-billable. Use a more specific sub-code for primary diagnosis billing.
K22.1 is in Chapter 11 of the ICD-10-CM Tabular List.
Type 1 Excludes for K22.1 include: Barrett's esophagus (K22.7-).
Yes, K22.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.