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S52.501B vs S52.509B

S52.501B (Unspecified fracture of the lower end of right radius, initial encounter for open fracture type I or II) compared with S52.509B (Unspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type I or II), from the official CMS tabular data. S52.501B and S52.509B code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S52.501B
Right
Unspecified fracture of the lower end of right radius, initial encounter for open fracture type I or II
S52.509B
Unspecified
Unspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type I or II

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S52.501B and S52.509B name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S52.501BUnspecified fracture of the lower end of right radius, initial encounter for open fracture type I or IIS52.509BUnspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type I or II
Billing statusBillableBillable
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionUnspecified fracture of the lower end of right radius, initial encounter for open fracture type I or II is a billable ICD-10-CM diagnosis code (S52.501B).Unspecified fracture of the lower end of unspecified radius, initial encounter for open fracture type I or II is a billable ICD-10-CM diagnosis code (S52.509B).
7th characterThe appropriate 7th character is to be added to all codes from category S52The appropriate 7th character is to be added to all codes from category S52

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources