I41.8 ICD-10-CA code: Myocarditis in other diseases classified elsewhere
I41.8 is the ICD-10-CA code for “Myocarditis in other diseases classified elsewhere” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
I41.8Myocarditis in other diseases classified elsewhere
Short description: Myocarditis in other dis class elsewhere
ICD-10-CA · Canada · Also written I418
Notes for I41.8
As CIHI prints them, with any note I41.8 takes from the headings above it.
Includes
- Rheumatoid myocarditis (M05.3†)Sarcoid myocarditis (D86.8†)
Excludes
Conditions classified elsewhere.
- 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)systemic connective tissue disorders (M30-M36)transient cerebral ischaemic attacks and related syndromes (G45.-)From Chapter 9: Diseases of the circulatory system (I00-I99)
Where I41.8 sits
- 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
- 2Block I30-I52Other forms of heart disease
- 3Category I41Myocarditis in diseases classified elsewhere
- 4Valid code I41.8Myocarditis in other diseases classified elsewhere
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 I41.8 mean?
I41.8 is the ICD-10-CA code for “Myocarditis in other diseases classified elsewhere” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is I41.8 in ICD-10-CA?
I41.8 sits under I41 Myocarditis in diseases classified elsewhere, within I30-I52 Other forms of heart disease, within Chapter 9: Diseases of the circulatory system (I00-I99).
What coding notes apply to I41.8?
ICD-10-CA lists Includes, Excludes notes for I41.8, 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.