Non-Billable / Non-Specific Code
ICD-10-CM K27 is the diagnosis code for Peptic ulcer, site unspecified. 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 K27. They are mutually exclusive:
Understanding where K27 sits in the ICD-10-CM classification helps ensure proper coding:
No, K27 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
K27 is the ICD-10-CM diagnosis code for "Peptic ulcer, site unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
K27 is located in Section K20-K31 — "Diseases of esophagus, stomach and duodenum" within Chapter 11 of the ICD-10-CM Tabular List.
K27 has 9 sub-code(s) that provide more specific detail: K27.0, K27.1, K27.2, K27.3, K27.4 and more.
Use K27 when the patients documented diagnosis matches "Peptic ulcer, site unspecified" 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 Peptic ulcer, site unspecified is K27.
No, K27 is non-billable. Use a more specific sub-code for primary diagnosis billing.
K27 is in Chapter 11 of the ICD-10-CM Tabular List.
Type 1 Excludes for K27 include: peptic ulcer of newborn (P78.82).
Yes, K27 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.