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S52.042P

✓ Billable

Displaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with malunion

Injury, poisoning and certain other consequences of external causes (S00-T88)

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

S52
  • • traumatic amputation of forearm (S58.-)

⚠️ Excludes2

inherited

Rules inherited from parent codes.

S52.0
  • • fracture of elbow NOS (S42.40-)
  • • fractures of shaft of ulna (S52.2-)
S52
  • • fracture at wrist and hand level (S62.-)
  • • periprosthetic fracture around internal prosthetic elbow joint (M97.4)

Clinical Description

ICD-10-CM code S52.042P represents displaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with malunion. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory. Coders should note that S52.042P has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code S52.042P?

ICD-10-CM code S52.042P is "Displaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with malunion". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S52.042P a billable ICD-10 code?

Yes, S52.042P is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with S52.042P?

S52.042P has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can S52.042P be coded with other codes?

S52.042P has 4 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in S52.042

Other codes in the same category that may be relevant for differential coding:

S52.042ADisplaced fracture of coronoid process of left ulna, initial encounter for closed fractureS52.042BDisplaced fracture of coronoid process of left ulna, initial encounter for open fracture type I or IIS52.042CDisplaced fracture of coronoid process of left ulna, initial encounter for open fracture type IIIA, IIIB, or IIICS52.042DDisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with routine healingS52.042EDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with routine healingS52.042FDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.042GDisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with delayed healingS52.042HDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with delayed healingS52.042JDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.042KDisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with nonunionS52.042MDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with nonunionS52.042NDisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

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Code Information

CodeS52.042P
BillableYes
ParentS52.042
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes11 rule(s)
Excludes24 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)