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ICD-10-CM 2027 diagnosis code

S20.2Contusion of thorax

Not billable — use a more specific codeRequires 7th character

S20.2 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.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S20.2

S20.2 is the ICD-10-CM diagnosis code for contusion 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 (superficial injury of thorax), S20.2 is specifically for contusion of thorax. Related codes cover contusion of breast (S20.0), other and unspecified superficial injuries of breast (S20.1), other and unspecified superficial injuries of front wall of thorax (S20.3), other and unspecified superficial injuries of back wall of thorax (S20.4) and superficial injury of unspecified parts of thorax (S20.9).

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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

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

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S20.2.

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S20.2

Is S20.2 billable?

No. S20.2 is a header code. Report one of its more specific subcodes instead.