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S41.122A vs S41.129A

S41.122A (Laceration with foreign body of left upper arm, initial encounter) compared with S41.129A (Laceration with foreign body of unspecified upper arm, initial encounter), from the official CMS tabular data. S41.122A and S41.129A code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

S41.122A
Left
Laceration with foreign body of left upper arm, initial encounter
S41.129A
Unspecified
Laceration with foreign body of unspecified upper arm, initial 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. S41.122A and S41.129A 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

S41.122ALaceration with foreign body of left upper arm, initial encounterS41.129ALaceration with foreign body of unspecified upper arm, initial encounter
Billing statusBillableBillable
ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionLaceration with foreign body of left upper arm, initial encounter is a billable ICD-10-CM diagnosis code (S41.122A).Laceration with foreign body of unspecified upper arm, initial encounter is a billable ICD-10-CM diagnosis code (S41.129A).
7th characterThe appropriate 7th character is to be added to each code from category S41The appropriate 7th character is to be added to each code from category S41
Includes
injuries of axilla
injuries of scapular region
injuries of axilla
injuries of scapular region

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