S20.37 ICD-10-CM Code: Other superficial bite of 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
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S20.37 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
Excludes1 — Not Coded Here
Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
- open bite of front wall of thorax (S21.14) Compare S20.37 vs S21.14 →
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions (T20-T32) Compare S20.37 vs T20 →
- effects of foreign body in bronchus (T17.5) Compare S20.37 vs T17.5 →
- effects of foreign body in esophagus (T18.1) Compare S20.37 vs T18.1 →
- effects of foreign body in lung (T17.8) Compare S20.37 vs T17.8 →
- effects of foreign body in trachea (T17.4) Compare S20.37 vs T17.4 →
- frostbite (T33-T34) Compare S20.37 vs T33 →
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4) Compare S20.37 vs T63.4 →
Frequently Compared Codes
The official Excludes notes on S20.37 name these codes. Each comparison page covers when the two can — or must not — be reported together.
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Not billable as written — a more specific code is required.
- Requires a 7th character. "The appropriate 7th character is to be added to each code from category S20" Options: S20.371A, S20.371D, S20.371S, S20.372A, S20.372D, S20.372S
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Relationships & Classification
Other codes that name S20.37 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
Contextual Map
Every relationship of S20.37 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]
Excludes1
- S21.14 — Puncture wound with foreign body of front wall of thorax without penetration into thoracic cavity [Excludes1]: “open bite of front wall of thorax (S21.14)” · check together
Referenced by Excludes1 notes
- S21.15 — Open bite of front wall of thorax without penetration into thoracic cavity [Excludes1]: “superficial bite of front wall of thorax (S20.37)” · check together
- S21.35 — Open bite of front wall of thorax with penetration into thoracic cavity [Excludes1]: “superficial bite of front wall of thorax (S20.37)” · check together
Nearest codes (40)
- S20 — Superficial injury of thorax [Sibling]
- S20.361 — Insect bite (nonvenomous) of right front wall of thorax [Sibling]
- S20.361A — Insect bite (nonvenomous) of right front wall of thorax, initial encounter [Sibling]
- S20.361D — Insect bite (nonvenomous) of right front wall of thorax, subsequent encounter [Sibling]
- S20.361S — Insect bite (nonvenomous) of right front wall of thorax, sequela [Sibling]
- S20.362 — Insect bite (nonvenomous) of left front wall of thorax [Sibling]
- S20.362A — Insect bite (nonvenomous) of left front wall of thorax, initial encounter [Sibling]
- S20.362D — Insect bite (nonvenomous) of left front wall of thorax, subsequent encounter [Sibling]
- and 32 more
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S20.37 be billed directly?
No. S20.37 (Other superficial bite of 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 S20.37 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 S20.37 in its code family, with their registry titles.
- 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
- S20.369D — Insect bite (nonvenomous) of unspecified front wall of thorax, subsequent encounter
- S20.369S — Insect bite (nonvenomous) of unspecified front wall of thorax, sequela
- S20.371 — Other superficial bite of right front wall of thorax
- S20.371A — Other superficial bite of right front wall of thorax, initial encounter
- S20.371D — Other superficial bite of right front wall of thorax, subsequent encounter
- S20.371S — Other superficial bite of right front wall of thorax, sequela
- S20.372 — Other superficial bite of left front wall of thorax