2021 ICD-10-CM Diagnosis Code 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

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Y84.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Medical procedure, unsp cause abn react/compl, w/o misadvnt
  • The 2021 edition of ICD-10-CM Y84.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Y84.9 - other international versions of ICD-10 Y84.9 may differ.
ICD-10-CM Coding Rules
  • Y84.9 describes the circumstance causing an injury, not the nature of the injury.
The following code(s) above Y84.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Y84.9:
  • V00-Y99
    2021 ICD-10-CM Range V00-Y99

    External causes of morbidity

    Note
    • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.
    External causes of morbidity
  • Y83-Y84
    2021 ICD-10-CM Range 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

    Type 1 Excludes
    • misadventures to patients during surgical and medical care, classifiable to (Y62-Y69)
    Type 2 Excludes
    • breakdown or malfunctioning of medical device (after implantation) (during procedure) (ongoing use) (Y70-Y82)
    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

Convert Y84.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

External Cause Index entries containing back-references to Y84.9:
  • Accident (to) X58
    ICD-10-CM Diagnosis Code X58

    Exposure to other specified factors

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Accident NOS
    • Exposure NOS
    • in
      • medical, surgical procedure
        • causing an abnormal reaction or later complication without mention of misadventure Y84.9 - see also Complication of or following, by type of procedure
  • Complication (delayed) of or following (medical or surgical procedure) Y84.9
  • Reaction, abnormal to medical procedure Y84.9 - see also Complication of or following, by type of procedure

ICD-10-CM Codes Adjacent To Y84.9
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
Y84.0 Cardiac catheterization as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.1 Kidney dialysis as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.2 Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.3 Shock therapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.4 Aspiration of fluid as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.5 Insertion of gastric or duodenal sound as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.6 Urinary catheterization as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.7 Blood-sampling as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Y84.8 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
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
Y90 Evidence of alcohol involvement determined by blood alcohol level
Y90.0 Blood alcohol level of less than 20 mg/100 ml
Y90.1 Blood alcohol level of 20-39 mg/100 ml
Y90.2 Blood alcohol level of 40-59 mg/100 ml
Y90.3 Blood alcohol level of 60-79 mg/100 ml
Y90.4 Blood alcohol level of 80-99 mg/100 ml
Y90.5 Blood alcohol level of 100-119 mg/100 ml
Y90.6 Blood alcohol level of 120-199 mg/100 ml
Y90.7 Blood alcohol level of 200-239 mg/100 ml
Y90.8 Blood alcohol level of 240 mg/100 ml or more

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