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M84.433A vs M84.434A

M84.433A (Pathological fracture, right radius, initial encounter for fracture) compared with M84.434A (Pathological fracture, left radius, initial encounter for fracture), from the official CMS tabular data. M84.433A and M84.434A code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M84.433A
Right
Pathological fracture, right radius, initial encounter for fracture
M84.434A
Left
Pathological fracture, left radius, initial encounter for fracture

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. M84.433A and M84.434A 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

M84.433APathological fracture, right radius, initial encounter for fractureM84.434APathological fracture, left radius, initial encounter for fracture
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionPathological fracture, right radius, initial encounter for fracture is a billable ICD-10-CM diagnosis code (M84.433A).Pathological fracture, left radius, initial encounter for fracture is a billable ICD-10-CM diagnosis code (M84.434A).
7th characterThe appropriate 7th character is to be added to each code from subcategory M84.4:The appropriate 7th character is to be added to each code from subcategory M84.4:

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