Juvenile osteochondrosis affecting the metatarsal bones of the left foot, classified under the category of other juvenile osteochondroses (M92), representing avascular necrosis or abnormal ossification of the metatarsal head(s) in a skeletally immature patient.

Documentation tips

What should appear in the chart to support M92.72.

Source · Editorial brief grounded in 5 cited references ↓

• Explicitly document 'left foot' laterality — without it, the claim drops to M92.70 (unspecified), which increases audit risk.
• Record the metatarsal(s) involved by number (e.g., second metatarsal head) to support clinical specificity in the note, even though ICD-10-CM does not sub-classify by ray.
• Include imaging findings in the note: plain film or MRI evidence of metatarsal head flattening, sclerosis, subchondral collapse, or joint space changes.
• Document the patient's age or skeletal maturity status (open physes, bone age) to justify the 'juvenile' classification and defend against payer queries for adult patients.
• Record prior conservative treatment (orthotics, activity modification, offloading boot) if coding a surgical encounter — payers may require documented conservative care failure.

Related CPT procedures

Procedure codes commonly billed with M92.72. Linking the right diagnosis to the right procedure is what establishes medical necessity.

Source · CMS LCDs · AAOS specialty guidance · claims-pattern analysis

Common coding pitfalls

The recurring mistakes coders make with M92.72 and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

• Assigning M92.72 to an adult patient with metatarsal osteonecrosis — 'juvenile' osteochondrosis requires documented skeletal immaturity; adult avascular necrosis maps to the M87 category instead.
• Using M92.72 for right-foot pathology — the 6th character '2' designates left; right foot is M92.71.
• Defaulting to unspecified M92.70 when the operative or clinic note clearly states 'left' — always capture documented laterality.
• Confusing M92.72 (metatarsal osteochondrosis) with M92.62 (juvenile osteochondrosis of tarsus, left foot) — Freiberg's is a metatarsal condition, not a tarsal condition; confirm the anatomic location before selecting the code.
• Omitting a separate code for a bilateral condition — if both feet are affected and documented, report M92.71 and M92.72 together; there is no single bilateral code in this subcategory.

Clinical context

Source · Editorial summary grounded in 5 cited references ↓

Sibling codes

Other billable codes under M92.7 (laterality / anatomic variants).