Coding and coverage · ICD-10-CM

S52 › S52.2 › S52.24

S52.242 Displaced spiral fracture of shaft of ulna, left arm

Not billable (header)Chapter 19

This code needs a 7th character (use X as a placeholder for missing characters).

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7th character codes

  • S52.242A Displaced spiral fracture of shaft of ulna, left arm, initial encounter for closed fracture
  • S52.242B Displaced spiral fracture of shaft of ulna, left arm, initial encounter for open fracture type I or II
  • S52.242C Displaced spiral fracture of shaft of ulna, left arm, initial encounter for open fracture type IIIA, IIIB, or IIIC
  • S52.242D Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with routine healing
  • S52.242E Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with routine healing
  • S52.242F Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
  • S52.242G Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with delayed healing
  • S52.242H Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with delayed healing
  • S52.242J Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
  • S52.242K Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with nonunion
  • S52.242M Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with nonunion
  • S52.242N Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
  • S52.242P Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for closed fracture with malunion
  • S52.242Q Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type I or II with malunion
  • S52.242R Displaced spiral fracture of shaft of ulna, left arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
  • S52.242S Displaced spiral fracture of shaft of ulna, left arm, sequela

Instructional notes

Chapter 19

Excludes2Not included here: the patient may have both; report both when both are present.
Use additional codeAdd a second code for the full picture.
  • code to identify any retained foreign body, if applicable (Z18.-)
Notes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Section S50-S59

Excludes2Not included here: the patient may have both; report both when both are present.

S52

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • traumatic amputation of forearm (S58.-)
Excludes2Not included here: the patient may have both; report both when both are present.
  • fracture at wrist and hand level (S62.-)
  • periprosthetic fracture around internal prosthetic elbow joint (M97.4)
Notes
  • 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
7th charactersThe appropriate 7th character is to be added to all codes from category S52
  • A initial encounter for closed fracture
  • B initial encounter for open fracture type I or II
  • C initial encounter for open fracture type IIIA, IIIB, or IIIC
  • D subsequent encounter for closed fracture with routine healing
  • E subsequent encounter for open fracture type I or II with routine healing
  • F subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
  • G subsequent encounter for closed fracture with delayed healing
  • H subsequent encounter for open fracture type I or II with delayed healing
  • J subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
  • K subsequent encounter for closed fracture with nonunion
  • M subsequent encounter for open fracture type I or II with nonunion
  • N subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
  • P subsequent encounter for closed fracture with malunion
  • Q subsequent encounter for open fracture type I or II with malunion
  • R subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
  • S sequela

Chapter 19: Injury, poisoning and certain other consequences of external causes · S50-S59 Injuries to the elbow and forearm (S50-S59)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.