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Home/Diagnosis/ICD-10 Coding for Insect Bite at Multiple Sites

ICD-10 Coding for Insect Bite at Multiple Sites

S40.861A
W57.XXXA

Complete ICD-10-CM coding and documentation guide for icd-10 coding for insect bite at multiple sites includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Multiple Insect Bites
Insect Bites on Multiple Body Parts
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Key Information: ICD-10 Coding for Insect Bite at Multiple Sites

Essential facts and insights about ICD-10 Coding for Insect Bite at Multiple Sites

Use ICD-10 code S40.861A for insect bite (nonvenomous) of right upper arm, initial encounter, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Insect bite (nonvenomous) of right upper arm, initial encounter

Billable Code
S40.861A
Billable

Diagnostic Criteria

clinical:
  • • Presence of a nonvenomous insect bite on the right upper arm.
documentation:
  • • Documented confirmation of nonvenomous insect.

Applicable To

  • • Nonvenomous insect bite of right upper arm

Important Notes

  • • Always pair with W57.XXXA for complete coding.

Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter

Billable Code
W57.XXXA
Billable

Applicable To

  • • Bites by nonvenomous insects

Important Notes

  • • Must follow the site-specific S codes in sequence.
Ancillary Codes

Additional codes that may be used with this diagnosis

W57.XXXA

Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter

Use alongside S codes to specify the cause of the injury.

Frequently Asked Questions

How do you code multiple insect bites in ICD-10?

Each insect bite site is coded individually using site-specific S codes, followed by W57.XXXA for the external cause. Ensure documentation specifies each location.

What is the ICD-10 code for nonvenomous insect bites?

Use W57.XXXA for nonvenomous insect bites, paired with site-specific S codes for each bite location.

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