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K27.1 ICD-10-CA code: Peptic ulcer, acute with perforation

K27.1 is the ICD-10-CA code for “Peptic ulcer, acute with perforation” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

K27.1

Peptic ulcer, acute with perforation

Short description: Peptic ulcer acute with perforation

ICD-10-CA · Canada · Also written K271

Index terms

Entries in CIHI’s alphabetical index that lead to K27.1. Searching the index by the condition the note names is how coders reach this code.

  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, peptic (site unspecified), acute, with, perforation

Notes for K27.1

As CIHI prints them, with any note K27.1 takes from the headings above it.

Includes

Use additional code

Add a code for this detail when the note documents it.

Excludes

Conditions classified elsewhere.

  • Peptic ulcer of newborn (P78.88)From K27 Peptic ulcer, site unspecified
  • Hiatus hernia (K44.-)From K20-K31 Diseases of oesophagus, stomach and duodenum
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)

Where K27.1 sits

  1. 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
  2. 2Block K20-K31Diseases of oesophagus, stomach and duodenum
  3. 3Category K27Peptic ulcer, site unspecified
  4. 4Valid code K27.1Peptic ulcer, acute with perforation

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See K27.1 in the CIHI source

Frequently asked questions

What does ICD-10-CA code K27.1 mean?

K27.1 is the ICD-10-CA code for “Peptic ulcer, acute with perforation” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is K27.1 in ICD-10-CA?

K27.1 sits under K27 Peptic ulcer, site unspecified, within K20-K31 Diseases of oesophagus, stomach and duodenum, within Chapter 11: Diseases of the digestive system (K00-K93).

What coding notes apply to K27.1?

ICD-10-CA lists Includes, Use additional code, Excludes notes for K27.1, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside K27.1

K27.0Peptic ulcer, acute with haemorrhageK27.2Peptic ulcer, acute with both haemorrhage and perforationK27.3Peptic ulcer, acute without haemorrhage or perforationK27.4Peptic ulcer, chronic or unspecified with haemorrhageK27.5Peptic ulcer, chronic or unspecified with perforationK27.6Peptic ulcer, chronic or unspecified with both haemorrhage and perforationK27.7Peptic ulcer, chronic without haemorrhage or perforationK27.9Peptic ulcer, unspecified as acute or chronic, without haemorrhage or perforation