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ICD-10-CM 2027 diagnosis code

S27.5Injury of thoracic trachea

Not billable — use a more specific codeRequires 7th character

S27.5 is a header code, so it can't be reported by itself. Choose one of the 5 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 S27.5

S27.5 is the ICD-10-CM diagnosis code for injury of thoracic trachea. It belongs to category S27 (injury of other and unspecified intrathoracic organs), 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 5 subcodes must be used instead.

Within S27 (injury of other and unspecified intrathoracic organs), S27.5 is specifically for injury of thoracic trachea. Related codes cover traumatic pneumothorax (S27.0), traumatic hemothorax (S27.1), traumatic hemopneumothorax (S27.2), other and unspecified injuries of lung (S27.3), injury of bronchus (S27.4), injury of pleura (S27.6), injury of other specified intrathoracic organs (S27.8) and injury of unspecified intrathoracic organ (S27.9).

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 S27

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S27.5.

› From S27 Injury of other and unspecified intrathoracic organs
Excludes2
  • injury of cervical esophagus (S10-S19)
  • injury of trachea (cervical) (S10-S19)
Code also
  • any associated open wound of thorax (S21.-)

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

Codes whose notes reference S27.5

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 S27.5

Is S27.5 billable?

No. S27.5 is a header code. Report one of its more specific subcodes instead.