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ICD-10-CM · FY 2026 APRIL UPDATE

S20.36

Insect bite (nonvenomous) of front wall of thorax

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
S20.361Insect bite (nonvenomous) of right front wall of thoraxCategory
S20.361AInsect bite (nonvenomous) of right front wall of thorax, initial encounterBillable
S20.361DInsect bite (nonvenomous) of right front wall of thorax, subsequent encounterBillable
S20.361SInsect bite (nonvenomous) of right front wall of thorax, sequelaBillable
S20.362Insect bite (nonvenomous) of left front wall of thoraxCategory
S20.362AInsect bite (nonvenomous) of left front wall of thorax, initial encounterBillable
S20.362DInsect bite (nonvenomous) of left front wall of thorax, subsequent encounterBillable
S20.362SInsect bite (nonvenomous) of left front wall of thorax, sequelaBillable
S20.363Insect bite (nonvenomous) of bilateral front wall of thoraxCategory
S20.363AInsect bite (nonvenomous) of bilateral front wall of thorax, initial encounterBillable
S20.363DInsect bite (nonvenomous) of bilateral front wall of thorax, subsequent encounterBillable
S20.363SInsect bite (nonvenomous) of bilateral front wall of thorax, sequelaBillable
S20.364Insect bite (nonvenomous) of middle front wall of thoraxCategory
S20.364AInsect bite (nonvenomous) of middle front wall of thorax, initial encounterBillable
S20.364DInsect bite (nonvenomous) of middle front wall of thorax, subsequent encounterBillable
S20.364SInsect bite (nonvenomous) of middle front wall of thorax, sequelaBillable
S20.369Insect bite (nonvenomous) of unspecified front wall of thoraxCategory
S20.369AInsect bite (nonvenomous) of unspecified front wall of thorax, initial encounterBillable
S20.369DInsect bite (nonvenomous) of unspecified front wall of thorax, subsequent encounterBillable
S20.369SInsect bite (nonvenomous) of unspecified front wall of thorax, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.