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ICD-10-CM 2027 diagnosis code

S52.02Fracture of olecranon process without intraarticular extension of ulna

Not billable — use a more specific codeRequires 7th character

S52.02 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it and add the required 7th character.Short description: Fracture of olecran pro w/o intraarticular extension of ulna

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 S52.02

S52.02 is the ICD-10-CM diagnosis code for fracture of olecranon process without intraarticular extension of ulna. It belongs to category S52 (fracture of forearm), block S50-S59 (injuries to the elbow and forearm) 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 6 subcodes must be used instead.

Within S52.0, choose S52.02 (Fracture of olecranon process without intraarticular extension of ulna) only when documentation doesn't support a more specific option: unspecified fracture of upper end of ulna (S52.00), Torus fracture of upper end of ulna (S52.01), fracture of olecranon process with intraarticular extension of ulna (S52.03), fracture of coronoid process of ulna (S52.04) and other fracture of upper end of ulna (S52.09).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture type I or II, C for initial encounter for open fracture type IIIA, IIIB, or IIIC, D for subsequent encounter for closed fracture with routine healing, E for subsequent encounter for open fracture type I or II with routine healing, F for subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing and 10 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 S52

  • Ainitial encounter for closed fracture
  • Binitial encounter for open fracture type I or II
  • Cinitial encounter for open fracture type IIIA, IIIB, or IIIC
  • Dsubsequent encounter for closed fracture with routine healing
  • Esubsequent encounter for open fracture type I or II with routine healing
  • Fsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
  • Gsubsequent encounter for closed fracture with delayed healing
  • Hsubsequent encounter for open fracture type I or II with delayed healing
  • Jsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
  • Ksubsequent encounter for closed fracture with nonunion
  • Msubsequent encounter for open fracture type I or II with nonunion
  • Nsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
  • Psubsequent encounter for closed fracture with malunion
  • Qsubsequent encounter for open fracture type I or II with malunion
  • Rsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S52.02.

› From S52.0 Fracture of upper end of ulna
Excludes2
  • fracture of elbow NOS (S42.40-)
  • fractures of shaft of ulna (S52.2-)
› From S52 Fracture of forearm
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
  • The open fracture designations are based on the Gustilo open fracture classification
Excludes1
  • traumatic amputation of forearm (S58.-)
Excludes2
  • fracture at wrist and hand level (S62.-)
  • periprosthetic fracture around internal prosthetic elbow joint (M97.4)

Broader instructions also apply from S50-S59 Injuries to the elbow and forearm and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to S52.02.

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 S52.02

Is S52.02 billable?

No. S52.02 is a header code. Report one of its more specific subcodes instead.