Surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure (Y83-Y84) ICD-10-CM
The Y83–Y84 section covers surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure with 21 ICD-10-CM diagnosis codes, of which 19 are billable in fiscal year 2027. The section is organized into the 2 code ranges listed below.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Code Ranges in This Section 2 ranges · 21 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Y83–Y84 Code Range
An abnormal reaction or later complication can follow surgery or another medical procedure without a misadventure noted during the procedure.
Y83 separates surgical procedures by type, including whole-organ transplants, artificial internal device implants, amputations, and organ removal. It also distinguishes bypass or graft procedures, reconstructive surgery, and other or unspecified surgical procedures.
Y84 separates other medical procedures by type, including blood sampling and removal of fluid. It also has subdivisions for other or unspecified medical procedures.
Questions About This Page
How many codes are in the Y83-Y84 range?
The Y83-Y84 range contains 21 ICD-10-CM diagnosis codes in FY 2027. 19 of them are billable, and the rest are category headers that organize the section.
What conditions does Y83-Y84 cover?
The range covers surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
