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ICD-10-CM 2027 diagnosis code

S20.303Unspecified superficial injuries of bilateral front wall of thorax

Not billable — use a more specific codeRequires 7th character

S20.303 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Unsp superfic injuries of bilateral front wall of thorax

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S20.303

S20.303 is the ICD-10-CM diagnosis code for unspecified superficial injuries of bilateral front wall of thorax. It belongs to category S20 (superficial injury of thorax), block S20-S29 (injuries to the thorax) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S20.30 (unspecified superficial injuries of front wall of thorax), S20.303 is specifically for unspecified superficial injuries of bilateral front wall of thorax. Related codes cover right front wall of thorax (S20.301), left front wall of thorax (S20.302), middle front wall of thorax (S20.304) and unspecified front wall of thorax (S20.309).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It was added in FY2021, effective October 1, 2020.

7th character

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

Notes that apply from higher levels

Instructions written at a parent level also apply to S20.303.

Broader instructions also apply from S20-S29 Injuries to the thorax and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2021 (effective 10/1/2020): Added
  • No changes since FY2021.

Common questions about S20.303

Is S20.303 billable?

No. S20.303 is a header code. Report one of its more specific subcodes instead.