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M84.431D vs M84.432D

M84.431D (Pathological fracture, right ulna, subsequent encounter for fracture with routine healing) compared with M84.432D (Pathological fracture, left ulna, subsequent encounter for fracture with routine healing), from the official CMS tabular data. M84.431D and M84.432D code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M84.431D
Right
Pathological fracture, right ulna, subsequent encounter for fracture with routine healing
↔
M84.432D
Left
Pathological fracture, left ulna, subsequent encounter for fracture with routine healing

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. M84.431D and M84.432D 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

M84.431DPathological fracture, right ulna, subsequent encounter for fracture with routine healingM84.432DPathological fracture, left ulna, subsequent encounter for fracture with routine healing
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionPathological fracture, right ulna, subsequent encounter for fracture with routine healing is a billable ICD-10-CM diagnosis code (M84.431D).Pathological fracture, left ulna, subsequent encounter for fracture with routine healing is a billable ICD-10-CM diagnosis code (M84.432D).
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:
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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