M84.477 Pathological fracture, right toe(s)

ICD-10-CM Diagnosis Code M84.477: Pathological fracture, right toe(s)

ICD-10-CM code M84.477 identifies a pathological fracture of the right toe(s) and is an active terminology concept within the 2026 code set. It falls under the broader parent category of pathological fractures involving the ankle, foot, and toes. General clinical literature notes fracture healing is a lengthy process spanning weeks to months, influenced by fracture location, severity, and treatment. 1 2

Plain-language overview

Code M84.477 represents a pathologic function designated as a pathological fracture of the right toe(s), providing a standardized diagnostic label for this specific health condition. 1

What this code represents

The official preferred name for M84.477 is pathological fracture, right toe(s), and this exact terminology record contains no narrower subordinate concepts within the ICD-10-CM hierarchy. 1

Coding details

Within the ICD-10-CM version 2026 terminology, M84.477 is an active code that exists as a direct child concept beneath the parent code M84.47 for pathological fractures of the ankle, foot, and toes. 1

Documentation considerations

Clinical literature establishes that human fracture healing is a lengthy process taking several weeks to months, with the duration varying based on the specific fracture location, severity, and treatment. 2

Clinical evidence indicates that interventions designed to accelerate fracture healing are not part of current treatment guidelines for bone fractures, despite the desire to shorten immobilization time. 2

What the sources add

The terminology record for M84.477 provides the official code definition and hierarchical structure, while the clinical review adds operational context regarding the extended timeframe and variables affecting general fracture recovery. 1 2

The primary terminology record confirms M84.477 has no narrower concepts, while the terminology explorer lists M84.477 as a child concept within the broader ICD-10-CM version 2026 hierarchy. 1 3

Clinical context

General clinical literature distinguishes between patients with otherwise healthy bones and individuals with metabolic or structural bone diseases that slow healing and require disease-specific therapeutic strategies. 2

Questions to verify

The supplied excerpts do not establish the specific clinical causes, diagnostic criteria, or treatment protocols for a pathological fracture of the right toe(s) mapped to code M84.477. 1 2

Sources

1. ICD-10-CM M84.477 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Methods to accelerate fracture healing – a narrative review from a clinical perspective — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.