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S58.921 vs S58.929

S58.921 (Partial traumatic amputation of right forearm, level unspecified) compared with S58.929 (Partial traumatic amputation of unspecified forearm, level unspecified), from the official CMS tabular data. S58.921 and S58.929 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S58.921
Right
Partial traumatic amputation of right forearm, level unspecified
S58.929
Unspecified
Partial traumatic amputation of unspecified forearm, level unspecified

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. S58.921 and S58.929 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

S58.921Partial traumatic amputation of right forearm, level unspecifiedS58.929Partial traumatic amputation of unspecified forearm, level unspecified
Billing statusNon-billable header

Report instead: S58.921A, S58.921D, S58.921S

Non-billable header

Report instead: S58.929A, S58.929D, S58.929S

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)
DefinitionPartial traumatic amputation of right forearm, level unspecified is a non-billable ICD-10-CM category code (S58.921).Partial traumatic amputation of unspecified forearm, level unspecified is a non-billable ICD-10-CM category code (S58.929).
7th characterThe appropriate 7th character is to be added to each code from category S58The appropriate 7th character is to be added to each code from category S58

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