ICD-10-CM 2027 diagnosis code
S25.4Injury of pulmonary blood vessels
S25.4 is a header code, so it can't be reported by itself. Choose one of the 4 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 S25.4
S25.4 is the ICD-10-CM diagnosis code for injury of pulmonary blood vessels. It belongs to category S25 (injury of blood vessels 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 4 subcodes must be used instead.
Within S25 (injury of blood vessels of thorax), S25.4 is specifically for injury of pulmonary blood vessels. Related codes cover thoracic aorta (S25.0), innominate or subclavian artery (S25.1), superior vena cava (S25.2), innominate or subclavian vein (S25.3), intercostal blood vessels (S25.5), other blood vessels of thorax (S25.8) and unspecified blood vessel of thorax (S25.9).
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 S25
- S25.40Unspecified injury of pulmonary blood vessels
- S25.41Minor laceration of pulmonary blood vessels
- S25.42Major laceration of pulmonary blood vessels
- S25.49Other specified injury of pulmonary blood vessels
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to S25.4.
› From S25 Injury of blood vessels of thorax
- any associated open wound (S21.-)
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
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S25.4
Is S25.4 billable?
- No. S25.4 is a header code. Report one of its more specific subcodes instead.