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S20.364 ICD-10-CM Code: Insect bite (nonvenomous) of middle front wall of thorax

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Insect bite (nonvenomous) of middle front wall of thorax is a non-billable ICD-10-CM category code (S20.364). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S20.364 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Frequently Compared Codes

The official Excludes notes on S20.364 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

  • FY2021 — 2020-10-01
    Added to the code set
    Insect bite (nonvenomous) of middle front wall of thorax
    FY2021 changes

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of S20.364 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88) [Hierarchy]
  • S20-S29 — Injuries to the thorax [Hierarchy]

Nearest codes (40)

  • S20 — Superficial injury of thorax [Sibling]
  • S20.354A — Superficial foreign body of middle front wall of thorax, initial encounter [Sibling]
  • S20.354D — Superficial foreign body of middle front wall of thorax, subsequent encounter [Sibling]
  • S20.354S — Superficial foreign body of middle front wall of thorax, sequela [Sibling]
  • S20.359 — Superficial foreign body of unspecified front wall of thorax [Sibling]
  • S20.359A — Superficial foreign body of unspecified front wall of thorax, initial encounter [Sibling]
  • S20.359D — Superficial foreign body of unspecified front wall of thorax, subsequent encounter [Sibling]
  • S20.359S — Superficial foreign body of unspecified front wall of thorax, sequela [Sibling]
  • and 32 more

Change history

  • FY2021 — Added to the code set [Change history]

Frequently Asked Questions (FAQ) & Clinical Guidance

Can S20.364 be billed directly?

No. S20.364 (Insect bite (nonvenomous) of middle front wall of thorax) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does S20.364 require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S20.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S20.364 in its code family, with their registry titles.

  • S20.362S — Insect bite (nonvenomous) of left front wall of thorax, sequela
  • S20.363 — Insect bite (nonvenomous) of bilateral front wall of thorax
  • S20.363A — Insect bite (nonvenomous) of bilateral front wall of thorax, initial encounter
  • S20.363D — Insect bite (nonvenomous) of bilateral front wall of thorax, subsequent encounter
  • S20.363S — Insect bite (nonvenomous) of bilateral front wall of thorax, sequela
  • S20.364A — Insect bite (nonvenomous) of middle front wall of thorax, initial encounter
  • S20.364D — Insect bite (nonvenomous) of middle front wall of thorax, subsequent encounter
  • S20.364S — Insect bite (nonvenomous) of middle front wall of thorax, sequela
  • S20.369 — Insect bite (nonvenomous) of unspecified front wall of thorax
  • S20.369A — Insect bite (nonvenomous) of unspecified front wall of thorax, initial encounter

View all codes in the S20 family