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S55.091D vs S55.099D

S55.091D (Other specified injury of ulnar artery at forearm level, right arm, subsequent encounter) compared with S55.099D (Other specified injury of ulnar artery at forearm level, unspecified arm, subsequent encounter), from the official CMS tabular data. S55.091D and S55.099D code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S55.091D
Right
Other specified injury of ulnar artery at forearm level, right arm, subsequent encounter
↔
S55.099D
Unspecified
Other specified injury of ulnar artery at forearm level, unspecified arm, subsequent encounter

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. S55.091D and S55.099D 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

S55.091DOther specified injury of ulnar artery at forearm level, right arm, subsequent encounterS55.099DOther specified injury of ulnar artery at forearm level, unspecified arm, subsequent encounter
Billing statusBillableBillable
ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionOther specified injury of ulnar artery at forearm level, right arm, subsequent encounter is a billable ICD-10-CM diagnosis code (S55.091D).Other specified injury of ulnar artery at forearm level, unspecified arm, subsequent encounter is a billable ICD-10-CM diagnosis code (S55.099D).
7th characterThe appropriate 7th character is to be added to each code from category S55The appropriate 7th character is to be added to each code from category S55
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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