K92.80 ICD-10-CA code: Mucositis (ulcerative) of the digestive system
K92.80 is the ICD-10-CA code for “Mucositis (ulcerative) of the digestive system” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
K92.80Mucositis (ulcerative) of the digestive system
Short description: Mucositis digest syst
ICD-10-CA · Canada · Also written K9280
Index terms
Entries in CIHI’s alphabetical index that lead to K92.80. Searching the index by the condition the note names is how coders reach this code.
- Mucositis (drug induced) (radiation induced) (ulcerative), ileum
- Mucositis (drug induced) (radiation induced) (ulcerative), rectum
- Mucositis (drug induced) (radiation induced) (ulcerative), gastric
- Mucositis (drug induced) (radiation induced) (ulcerative), stomach
- Mucositis (drug induced) (radiation induced) (ulcerative), duodenum
- Mucositis (drug induced) (radiation induced) (ulcerative), perianal
- Mucositis (drug induced) (radiation induced) (ulcerative), esophagus
- Mucositis (drug induced) (radiation induced) (ulcerative), perirectal
- Mucositis (drug induced) (radiation induced) (ulcerative), sigmoid colon
- Mucositis (drug induced) (radiation induced) (ulcerative), anus, anal canal
- Mucositis (drug induced) (radiation induced) (ulcerative), colon (any part)
- Mucositis (drug induced) (radiation induced) (ulcerative), intestine (any part)
- Mucositis (drug induced) (radiation induced) (ulcerative), gastrointestinal (ulcerative)
Notes for K92.80
As CIHI prints them, with any note K92.80 takes from the headings above it.
Includes
- Gastrointestinal mucositis (ulcerative):• drug-induced• radiation induced
Use additional code
Add a code for this detail when the note documents it.
- Use additional code to identify any agranulocytosis (neutropenia) (D70.0)
- Use additional external cause code (Chapter XX), to identify external agent
Excludes
Conditions classified elsewhere.
- Mucositis (oral) (oropharyngeal) (K12.3)
- Neonatal gastrointestinal haemorrhage (P54.0-P54.3)From K92 Other diseases of digestive system
- 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 K92.80 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K90-K93Other diseases of the digestive system
- 3Category K92Other diseases of digestive system
- 4Subcategory K92.8Other specified diseases of digestive system
- 5Valid code K92.80Mucositis (ulcerative) of the digestive system
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
What does ICD-10-CA code K92.80 mean?
K92.80 is the ICD-10-CA code for “Mucositis (ulcerative) of the digestive system” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is K92.80 in ICD-10-CA?
K92.80 sits under K92.8 Other specified diseases of digestive system, within K92 Other diseases of digestive system, within K90-K93 Other diseases of the digestive system, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K92.80?
ICD-10-CA lists Includes, Use additional code, Excludes notes for K92.80, 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.