Y63
Failure in dosage during surgical and medical care
Y63 is a non-billable ICD-10-CM code category for failure in dosage during surgical and medical care. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Y63.0 Excessive amount of blood or other fluid given during transfusion or infusion, Y63.1 Incorrect dilution of fluid used during infusion, Y63.2 Overdose of radiation given during therapy, Y63.3 Inadvertent exposure of patient to radiation during medical care and 5 more. Its coding notes include 1 Excludes1 entry and 2 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
An external cause code is never a principal or first-listed diagnosis. Its 7th character is assigned for each encounter and should match the injury or condition code.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- accidental overdose of drug or wrong drug given in error (T36-T50)
Notes
Also from chapter/block level (1 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.
More specific codes under Y63 9
- Y63.0Excessive amount of blood or other fluid given during transfusion or infusionBillable
- Y63.1Incorrect dilution of fluid used during infusionBillable
- Y63.2Overdose of radiation given during therapyBillable
- Y63.3Inadvertent exposure of patient to radiation during medical careBillable
- Y63.4Failure in dosage in electroshock or insulin-shock therapyBillable
- Y63.5Inappropriate temperature in local application and packingBillable
- Y63.6Underdosing and nonadministration of necessary drug, medicament or biological substanceBillable
- Y63.8Failure in dosage during other surgical and medical careBillable
- Y63.9Failure in dosage during unspecified surgical and medical careBillable