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ICD-10-CM 2027 diagnosis code

S45.10Unspecified injury of brachial artery

Not billable — use a more specific codeRequires 7th character

S45.10 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 S45.10

S45.10 is the ICD-10-CM diagnosis code for unspecified injury of brachial artery. It belongs to category S45 (injury of blood vessels at shoulder and upper arm level), block S40-S49 (injuries to the shoulder and upper arm) 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 S45.1, choose S45.10 (Unspecified injury of brachial artery) only when documentation doesn't support a more specific option: laceration of brachial artery (S45.11) and other specified injury of brachial artery (S45.19).

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 S45

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S45.10.

› From S45 Injury of blood vessels at shoulder and upper arm level
Excludes2
  • injury of subclavian artery (S25.1)
  • injury of subclavian vein (S25.3)
Code also
  • any associated open wound (S41.-)

Broader instructions also apply from S40-S49 Injuries to the shoulder and upper arm and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S45.10.

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 S45.10

Is S45.10 billable?

No. S45.10 is a header code. Report one of its more specific subcodes instead.