I97.1 ICD-10-CA code: Other functional disturbances following cardiac surgery
I97.1 is the ICD-10-CA code for “Other functional disturbances following cardiac surgery” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
I97.1Other functional disturbances following cardiac surgery
Short description: Oth fn disturbances foll cardiac surgery
ICD-10-CA · Canada · Also written I971
Index terms
Entries in CIHI’s alphabetical index that lead to I97.1. Searching the index by the condition the note names is how coders reach this code.
- Block, heart, postoperative, long term effect of cardiac surgery
- Failure, failed, cardiorespiratory, long term effect of cardiac surgery
- Arrhythmia (cardiac), postoperative, long term effect of cardiac surgery
- Dysrhythmia, cardiac, postoperative, long term effect of cardiac surgery
- Arrest, arrested, cardiac, postoperative, long term effect of cardiac surgery
- Insufficiency, insufficient, cardiac, due to presence of (cardiac) prosthesis
- Tachycardia, paroxysmal NEC, postoperative, long term effect of cardiac surgery
- Failure, failed, heart (acute) (sudden) (senile), due to presence of cardiac prosthesis
- Insufficiency, insufficient, cardiac, postoperative, long term effect of cardiac surgery
- Fibrillation, atrial or auricular (established), postoperative, long term effect of cardiac surgery
- Failure, failed, heart (acute) (sudden) (senile), postoperative, long term effect of cardiac surgery
- Failure, failed, heart (acute) (sudden) (senile), complicating, surgery, long term effect of cardiac surgery
- Complication, complications (from) (of), surgical procedure, cardiac, long term effect following cardiac surgery
Notes for I97.1
As CIHI prints them, with any note I97.1 takes from the headings above it.
Includes
- Cardiac insufficiency, Heart failure following cardiac surgery or due to presence of cardiac prosthesis
Use additional code
Add a code for this detail when the note documents it.
- Use additional code to identify specific functional disturbance(s).
Excludes
Conditions classified elsewhere.
- Postoperative shock (T81.1)From I97 Postprocedural disorders of circulatory system, not elsewhere classified
- 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 I97.1 sits
- 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
- 2Block I95-I99Other and unspecified disorders of the circulatory system
- 3Category I97Postprocedural disorders of circulatory system, not elsewhere classified
- 4Valid code I97.1Other functional disturbances following cardiac surgery
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 I97.1 mean?
I97.1 is the ICD-10-CA code for “Other functional disturbances following cardiac surgery” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is I97.1 in ICD-10-CA?
I97.1 sits under I97 Postprocedural disorders of circulatory system, not elsewhere classified, within I95-I99 Other and unspecified disorders of the circulatory system, within Chapter 9: Diseases of the circulatory system (I00-I99).
What coding notes apply to I97.1?
ICD-10-CA lists Includes, Use additional code, Excludes notes for I97.1, 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.