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2. ICD-10 Codes
3. Chapter - V00-Y99
4. Section - Y83-Y84
5. Category - Y84
6. Y84.9

Y84.9 - Medical procedure, unspecified as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

• Applicable to Medical procedure, unspecified as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
• The 2025 edition of ICD10-CM Y84.9 became effective on October 1, 2024.
• This is the American ICD10-CM version of Y84.9 - other international versions of ICD10 Y84.9 may differ.
• Y84.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above Y84.9 contain annotation back-references that may be applicable to Y84.9:

• Chapter: V00-Y99 - External causes of morbidity
• Section: Y83-Y84 - 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
• Category: Y84 - 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

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.