VA defines marked and moderate ankle limitation with specific dorsiflexion and plantar-flexion thresholds.
Plain-language summaries explain the text; they do not decide whether any level applies.
Marked (less than 5 degrees dorsiflexion or less than 10 degrees plantar flexion)Plain-language summary
Marked limitation is defined by either listed motion threshold.
Moderate (less than 15 degrees dorsiflexion or less than 30 degrees plantar flexion)Plain-language summary
Moderate limitation is defined by either listed motion threshold.
38 CFR § 4.71a, DC 5271 · Effective Feb 7, 2021 · Reviewed Jul 24, 2026