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M84.452S vs M84.453S

M84.452S (Pathological fracture, left femur, sequela) compared with M84.453S (Pathological fracture, unspecified femur, sequela), from the official CMS tabular data. M84.452S and M84.453S code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M84.452S
Left
Pathological fracture, left femur, sequela
M84.453S
Unspecified
Pathological fracture, unspecified femur, sequela

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. M84.452S and M84.453S 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

M84.452SPathological fracture, left femur, sequelaM84.453SPathological fracture, unspecified femur, sequela
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionPathological fracture, left femur, sequela is a billable ICD-10-CM diagnosis code (M84.452S).Pathological fracture, unspecified femur, sequela is a billable ICD-10-CM diagnosis code (M84.453S).
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