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S52.121C

✓ Billable

Displaced fracture of head of right radius, initial encounter for open fracture type IIIA, IIIB, or IIIC

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.

S52.1
  • • physeal fractures of upper end of radius (S59.2-)
  • • fracture of shaft of radius (S52.3-)
S52
  • • fracture at wrist and hand level (S62.-)
  • • periprosthetic fracture around internal prosthetic elbow joint (M97.4)

Clinical Description

ICD-10-CM code S52.121C represents displaced fracture of head of right radius, initial encounter for open fracture type iiia, iiib, or iiic. 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 S52.121C has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code S52.121C?

ICD-10-CM code S52.121C is "Displaced fracture of head of right radius, initial encounter for open fracture type IIIA, IIIB, or IIIC". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S52.121C a billable ICD-10 code?

Yes, S52.121C is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with S52.121C?

S52.121C has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can S52.121C be coded with other codes?

S52.121C has 4 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in S52.121

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

S52.121ADisplaced fracture of head of right radius, initial encounter for closed fractureS52.121BDisplaced fracture of head of right radius, initial encounter for open fracture type I or IIS52.121DDisplaced fracture of head of right radius, subsequent encounter for closed fracture with routine healingS52.121EDisplaced fracture of head of right radius, subsequent encounter for open fracture type I or II with routine healingS52.121FDisplaced fracture of head of right radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.121GDisplaced fracture of head of right radius, subsequent encounter for closed fracture with delayed healingS52.121HDisplaced fracture of head of right radius, subsequent encounter for open fracture type I or II with delayed healingS52.121JDisplaced fracture of head of right radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.121KDisplaced fracture of head of right radius, subsequent encounter for closed fracture with nonunionS52.121MDisplaced fracture of head of right radius, subsequent encounter for open fracture type I or II with nonunionS52.121NDisplaced fracture of head of right radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.121PDisplaced fracture of head of right radius, subsequent encounter for closed fracture with malunion

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Code Information

CodeS52.121C
BillableYes
ParentS52.121
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)