Damage or dysfunction of the tibia and fibula, the two bones of the lower leg.
For a nonunion with loose motion, medical records that document the fracture site, imaging such as X-rays showing the failure to heal, clinical notes describing abnormal movement at the fracture site, and a prescription or documentation of brace use would all be relevant to the 40% level.
For malunion, records showing how the bones healed and the effect on knee or ankle movement would be evaluated under the knee or ankle diagnostic codes rather than this one directly.
For MTSS, the most important evidence is treatment records showing a continuous period of care. Notes tracking at least 12 consecutive months of treatment, records of shoe orthotics or other conservative treatment that was tried, and operative reports or surgeon notes documenting surgery that did not resolve the condition would support the higher ratings. If both legs are affected, records clearly documenting symptoms and treatment in each leg would be relevant to reaching the 30% level. Statements from you describing how pain and limitations affect walking, standing, or other daily activities can help show the extent of your impairment.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.
