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S52.691B vs S52.699B

S52.691B (Other fracture of lower end of right ulna, initial encounter for open fracture type I or II) compared with S52.699B (Other fracture of lower end of unspecified ulna, initial encounter for open fracture type I or II), from the official CMS tabular data. S52.691B and S52.699B code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

S52.691B
Right
Other fracture of lower end of right ulna, initial encounter for open fracture type I or II
↔
S52.699B
Unspecified
Other fracture of lower end of unspecified ulna, 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. S52.691B and S52.699B 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

S52.691BOther fracture of lower end of right ulna, initial encounter for open fracture type I or IIS52.699BOther fracture of lower end of unspecified ulna, initial encounter for open fracture type I or II
Billing statusBillableBillable
ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionOther fracture of lower end of right ulna, initial encounter for open fracture type I or II is a billable ICD-10-CM diagnosis code (S52.691B).Other fracture of lower end of unspecified ulna, initial encounter for open fracture type I or II is a billable ICD-10-CM diagnosis code (S52.699B).
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
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources