2021 ICD-10-CM Code S30.866

Insect bite (nonvenomous) of unspecified external genital organs, female

Version 2021

Not Valid for Submission

S30.866 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 unspecified external genital organs, female. The code is not specific and is NOT valid for the year 2021 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 S30.866 might also be used to specify conditions or terms like infected insect bite of genitalia or insect bite of genitalia.

Unspecified diagnosis codes like S30.866 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:S30.866
Short Description:Insect bite of unsp external genital organs, female
Long Description:Insect bite (nonvenomous) of unspecified external genital organs, female

Code Classification

Coding Guidelines

The appropriate 7th character is to be added to each code from block Superfic inj abdomen, low back, pelvis and external genitals (S30). Use the following options for the aplicable episode of care:

Specific Coding for Insect bite of unsp external genital organs, female

Non-specific codes like S30.866 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 of unsp external genital organs, female:

  • BILLABLE CODE - Use S30.866A for initial encounter
  • BILLABLE CODE - Use S30.866D for subsequent encounter
  • BILLABLE CODE - Use S30.866S for sequela

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code S30.866 are found in the index:

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

Also called: Bug bites

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)