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ICD-10-CM 2027 diagnosis code

S42.2323-part fracture of surgical neck of left humerus

Not billable — use a more specific codeRequires 7th character

S42.232 is a header code, so it can't be reported by itself. Choose one of the 7 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 S42.232

S42.232 is the ICD-10-CM diagnosis code for 3-part fracture of surgical neck of left humerus. It belongs to category S42 (fracture of shoulder and upper arm), 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 7 subcodes must be used instead.

Within S42.23 (3-part fracture of surgical neck of humerus), S42.232 is specifically for 3-part fracture of surgical neck of left humerus. Related codes cover right humerus (S42.231) and unspecified humerus (S42.239).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion, P for subsequent encounter for fracture with malunion and 1 more. 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 all codes from category S42

  • Ainitial encounter for closed fractureS42.232A
  • Binitial encounter for open fractureS42.232B
  • Dsubsequent encounter for fracture with routine healingS42.232D
  • Gsubsequent encounter for fracture with delayed healingS42.232G
  • Ksubsequent encounter for fracture with nonunionS42.232K
  • Psubsequent encounter for fracture with malunionS42.232P
  • SsequelaS42.232S

Notes that apply from higher levels

Instructions written at a parent level also apply to S42.232.

› From S42.2 Fracture of upper end of humerus
Excludes2
  • fracture of shaft of humerus (S42.3-)
  • physeal fracture of upper end of humerus (S49.0-)
› From S42 Fracture of shoulder and upper arm
Note
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
Excludes1
  • traumatic amputation of shoulder and upper arm (S48.-)
Excludes2
  • periprosthetic fracture around internal prosthetic shoulder joint (M97.3)

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.

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 S42.232

Is S42.232 billable?

No. S42.232 is a header code. Report one of its more specific subcodes instead.