K27.3Acute peptic ulcer, site unspecified, without hemorrhage or perforation

K27.3 is the ICD-10-CM diagnosis code for acute peptic ulcer, site unspecified, without hemorrhage or perforation. It belongs to category K27 (peptic ulcer, site unspecified), block K20-K31 (diseases of esophagus, stomach and duodenum) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K27, choose K27.3 (Acute peptic ulcer, site unspecified, without hemorrhage or perforation) only when documentation doesn't support a more specific option: acute peptic ulcer, site unspecified, with hemorrhage (K27.0), acute peptic ulcer, site unspecified, with perforation (K27.1), acute peptic ulcer, site unspecified, with both hemorrhage and perforation (K27.2), chronic or unspecified peptic ulcer, site unspecified, with hemorrhage (K27.4), chronic or unspecified peptic ulcer, site unspecified, with perforation (K27.5), chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation (K27.6), chronic peptic ulcer, site unspecified, without hemorrhage or perforation (K27.7) and unspecified as acute or chronic, without hemorrhage or perforation (K27.9).

Use an additional code to identify: alcohol abuse and dependence (F10.-).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 380 (Complicated Peptic Ulcer with MCC, relative weight 1.9245), DRG 381 (Complicated Peptic Ulcer with CC, relative weight 1.0838), DRG 382 (Complicated Peptic Ulcer without CC/MCC, relative weight 0.7281), DRG 383 (Uncomplicated Peptic Ulcer with MCC, relative weight 1.3536) and DRG 384 (Uncomplicated Peptic Ulcer without MCC, relative weight 0.8469), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 533.30 (acute peptic ulcer of unspecified site without mention of hemorrhage and perforation, without mention of obstruction).