K27 ICD-10-CA category: Peptic ulcer, site unspecified
K27 isn’t a code on its own. Choose one of the 9 codes beneath it, the one the documentation supports.
Official description
K27Peptic ulcer, site unspecified
ICD-10-CA · Canada
Codes in K27
K27 isn’t a code on its own. Open the code that matches what the note documents.
K27.0Peptic ulcer, acute with haemorrhageK27.1Peptic ulcer, acute with perforationK27.2Peptic 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 perforationNotes for K27
As CIHI prints them, with any note K27 takes from the headings above it.
Includes
- gastroduodenal, peptic — ulcer NOS
Use additional code
Add a code for this detail when the note documents it.
- Use additional code to identify Helicobacter pylori (B98.0) if present.
Excludes
Conditions classified elsewhere.
- Peptic ulcer of newborn (P78.88)
- 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 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K20-K31Diseases of oesophagus, stomach and duodenum
- 3Category K27Peptic ulcer, site unspecified
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.
Frequently asked questions
Is K27 a valid ICD-10-CA code?
No. K27 (Peptic ulcer, site unspecified) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 9 codes; record the one the documentation supports.
Where is K27 in ICD-10-CA?
K27 sits under K20-K31 Diseases of oesophagus, stomach and duodenum, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K27?
ICD-10-CA lists Includes, Use additional code, Excludes notes for K27, 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.