Excludes1 pair

K22.1- vs K22.7-

K22.1 and K22.7 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on K22.7
Barrett's ulcer (K22.1)
K22.1

Ulcer of esophagus

Not billable
Chapter 11
Diseases of the digestive system
Section
K20-K31
Use when the record says
  • Barrett's ulcer
  • Erosion of esophagus
  • Fungal ulcer of esophagus
  • Peptic ulcer of esophagus
  • Ulcer of esophagus due to ingestion of chemicals
  • Ulcer of esophagus due to ingestion of drugs and medicaments
  • Ulcerative esophagitis
K22.7

Barrett's esophagus

Not billable
Chapter 11
Diseases of the digestive system
Section
K20-K31
Use when the record says
  • Barrett's disease
  • Barrett's syndrome
Indexed under
  • Metaplasia › esophagus

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027