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S52.043M

✓ Billable

Displaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type I or II with nonunion

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 S52.043M represents displaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type i or ii with nonunion. 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 S52.043M has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code S52.043M?

ICD-10-CM code S52.043M is "Displaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type I or II with nonunion". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S52.043M a billable ICD-10 code?

Yes, S52.043M is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with S52.043M?

S52.043M has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can S52.043M be coded with other codes?

S52.043M has 4 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in S52.043

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

S52.043ADisplaced fracture of coronoid process of unspecified ulna, initial encounter for closed fractureS52.043BDisplaced fracture of coronoid process of unspecified ulna, initial encounter for open fracture type I or IIS52.043CDisplaced fracture of coronoid process of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIICS52.043DDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for closed fracture with routine healingS52.043EDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type I or II with routine healingS52.043FDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.043GDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for closed fracture with delayed healingS52.043HDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type I or II with delayed healingS52.043JDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.043KDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for closed fracture with nonunionS52.043NDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.043PDisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for closed fracture with malunion

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Code Information

CodeS52.043M
BillableYes
ParentS52.043
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)