2022 ICD-10-CM Code S20.361

Insect bite (nonvenomous) of right front wall of thorax

Version 2021

Not Valid for Submission

ICD-10:S20.361
Short Description:Insect bite (nonvenomous) of right front wall of thorax
Long Description:Insect bite (nonvenomous) of right front wall of thorax

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the thorax (S20-S29)
      • Superficial injury of thorax (S20)

S20.361 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of insect bite (nonvenomous) of right front wall of thorax. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

The ICD-10-CM code S20.361 might also be used to specify conditions or terms like wound of right half of chest wall due to nonvenomous insect bite.

Coding Guidelines

The appropriate 7th character is to be added to each code from block Superficial injury of thorax (S20). Use the following options for the aplicable episode of care:

Specific Coding for Insect bite (nonvenomous) of right front wall of thorax

Non-specific codes like S20.361 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for insect bite (nonvenomous) of right front wall of thorax:

  • BILLABLE CODE - Use S20.361A for initial encounter
  • BILLABLE CODE - Use S20.361D for subsequent encounter
  • BILLABLE CODE - Use S20.361S for sequela

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Information for Patients


Insect Bites and Stings

Most insect bites are harmless, though they sometimes cause discomfort. Bee, wasp, and hornet stings and fire ant bites usually hurt. Mosquito and flea bites usually itch. Insects can also spread diseases. In the United States, some mosquitoes spread West Nile virus. Travelers outside the United States may be at risk for malaria and other infections.

To prevent insect bites and their complications


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)