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ICD-10-CM 2027 diagnosis code

Y63.5Inappropriate temperature in local application and packing

✓ Billable / specific

Y63.5 is a valid, billable ICD-10-CM code for inappropriate temperature in local application and packing. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Y63.5

Y63.5 is the ICD-10-CM diagnosis code for inappropriate temperature in local application and packing. It belongs to category Y63 (failure in dosage during surgical and medical care), block Y62-Y69 (misadventures to patients during surgical and medical care) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Y63 (failure in dosage during surgical and medical care), Y63.5 is specifically for inappropriate temperature in local application and packing. Related codes cover excessive amount of blood or other fluid given during transfusion or infusion (Y63.0), Incorrect dilution of fluid used during infusion (Y63.1), Overdose of radiation given during therapy (Y63.2), Inadvertent exposure of patient to radiation during medical care (Y63.3), failure in dosage in electroshock or insulin-shock therapy (Y63.4), underdosing and nonadministration of necessary drug, medicament or biological substance (Y63.6), failure in dosage during other surgical and medical care (Y63.8) and failure in dosage during unspecified surgical and medical care (Y63.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as E873.5 (inappropriate [too hot or too cold] temperature in local application and packing).

Notes that apply from higher levels

Instructions written at a parent level also apply to Y63.5.

› From Y63 Failure in dosage during surgical and medical care
Excludes2
  • accidental overdose of drug or wrong drug given in error (T36-T50)

Broader instructions also apply from Y62-Y69 Misadventures to patients during surgical and medical care and Chapter 20: External causes of morbidity.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to Y63.5.

  • Burn, burned, burning (accidental) (by) (from) (on) › heat › in local application or packing during medical or surgical procedure
  • Burn, burned, burning (accidental) (by) (from) (on) › local application of externally applied substance in medical or surgical care
  • Burn, burned, burning (accidental) (by) (from) (on) › medicament, externally applied
  • Burn, burned, burning (accidental) (by) (from) (on) › therapeutic misadventure › heat in local application or packing during medical or surgical procedure
  • Heat (effects of) (excessive) › inappropriate in local application or packing in medical or surgical procedure
  • Misadventure (s) to patient(s) during surgical or medical care › failure › in dosage › inappropriate temperature (too hot or too cold) in local application and packing
  • Misadventure (s) to patient(s) during surgical or medical care › inappropriate › temperature (too hot or too cold) in local application or packing
  • Scald, scalding (accidental) (by) (from) (in) › local application of externally applied substance in medical or surgical care

ICD-9-CM equivalent

Converter →
  • E873.5Inappropriate [too hot or too cold] temperature in local application and packingexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Y63.5

Is Y63.5 billable?

Yes. Y63.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Y63.5 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Y63.5 as a principal diagnosis.

Is Y63.5 a CC or MCC?

No. Y63.5 is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for Y63.5?

The CMS General Equivalence Mappings map Y63.5 to ICD-9-CM E873.5.