ICD-10-CM > M00-M99 > M65-M67 > M67 > M67.4 > M67.47 M67.47 Ganglion, ankle and foot Non-Billable/Non-Specific Codes M67.471Ganglion, right ankle and footM67.472Ganglion, left ankle and footM67.479Ganglion, unspecified ankle and foot