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Home/Diagnosis/ICD-10 Coding for Bug Bite

ICD-10 Coding for Bug Bite

S70.362A
L03.119

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

Also Known as:
Insect Bite
Nonvenomous Insect Bite
Tick Bite
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Key Information: ICD-10 Coding for Bug Bite

Essential facts and insights about ICD-10 Coding for Bug Bite

Use ICD-10 code S70.362A for insect bite (nonvenomous) of left thigh, initial encounter, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Insect bite (nonvenomous) of left thigh, initial encounter

Billable Code
S70.362A
Billable

Diagnostic Criteria

clinical:
  • • Presence of a nonvenomous insect bite on the left thigh
documentation:
  • • Documentation of initial encounter

Applicable To

  • • Nonvenomous insect bite

Important Notes

  • • Ensure laterality and encounter type are documented.

Cellulitis of unspecified part of limb

Billable Code
L03.119
Billable

Diagnostic Criteria

clinical:
  • • Erythema, warmth, and swelling at the site
  • • Purulent drainage

Applicable To

  • • Cellulitis due to insect bite

Important Notes

  • • Ensure infection is linked to the insect bite.
Ancillary Codes

Additional codes that may be used with this diagnosis

W57.XXXA

Bitten or stung by nonvenomous insect, initial encounter

Use as an external cause code when the S code does not specify the cause.

Frequently Asked Questions

What is the ICD-10 code for a bug bite?

The ICD-10 code for a nonvenomous insect bite on the left thigh, initial encounter, is S70.362A. Use W57.XXXA for the external cause if needed.

How do you code a tick bite with Lyme disease?

For a tick bite with Lyme disease, use A69.2 for Lyme disease, S70.362A for the bite site, and W57.XXXA for the external cause.

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