ICD-10-CM > M00-M99 > M70-M79 > M77 > M77.4 M77.4 Metatarsalgia Non-Billable/Non-Specific Type 1 Excludes Morton's metatarsalgia (G57.6) Codes M77.40Metatarsalgia, unspecified footM77.41Metatarsalgia, right footM77.42Metatarsalgia, left foot