◢ Musculoskeletal • 38 CFR § 4.71a, DC 5257 (instability), DC 5260 (limited flexion), DC 5261 (limited extension)
Knee Instability and Pain
Knee conditions allow what veterans call 'pyramiding within the rules.' The VA permits separate ratings for instability (DC 5257) and limitation of motion (DCs 5260 and 5261) on the same knee, because they describe distinct functional losses. A veteran with moderate instability plus limited flexion plus limited extension can stack to a meaningfully higher combined rating than any single DC produces alone.
Rating tiers under 38 CFR § 4.71a, DC 5257 (instability), DC 5260 (limited flexion), DC 5261 (limited extension)
The VA rates knee instability and pain at these schedular tiers. Most veterans land at the middle tiers — extreme tiers require correspondingly extreme documentation.
Slight recurrent subluxation or lateral instability (DC 5257), or flexion limited to 45 degrees (DC 5260), or extension limited to 10 degrees (DC 5261).
Moderate instability (DC 5257), or flexion limited to 30 degrees, or extension limited to 15 degrees.
Severe instability (DC 5257), or flexion limited to 15 degrees, or extension limited to 20 degrees.
Total knee replacement (DC 5055) for one year post-operative.
Evidence the C&P examiner needs
Build the record before the exam. Walk in with documentation, walk out with a stronger rating.
- 01
Knee and Lower Leg DBQ with goniometer measurements of flexion and extension
- 02
Stability test results (Lachman, anterior/posterior drawer, valgus/varus stress)
- 03
Imaging (MRI or X-ray) showing meniscal tear, ACL injury, arthritis, or alignment issues
- 04
Service treatment records of any in-service knee complaint, injury, or surgery
- 05
Lay statement on flare-ups, walking distance, stair-climbing limitations
- 06
If brace or cane is prescribed, the prescription record
Secondary conditions to file alongside
These conditions frequently develop as a consequence of knee instability and pain and are often missed. Each can be filed as a secondary claim and add to your combined rating.
Other knee (compensatory weight shifting)
Years of favoring one knee can support a secondary claim for the contralateral knee, often rated 10-20%.
Hip and lower back (gait alteration)
Altered gait from knee pathology supports secondary back and hip claims.
Depression (secondary to chronic pain)
Chronic knee pain causing functional loss supports secondary depression.
Common mistakes that lower the rating
- 01
Filing for knee pain alone — pain itself is not rated; document specific functional loss (range of motion, instability, flare-up frequency)
- 02
Not requesting separate evaluation for both flexion and extension when limited — these are distinct codes
- 03
Skipping the instability rating — many veterans get a flexion-only rating when they also have moderate instability worth a separate 20%
Pro tip
VA Office of General Counsel Precedent Opinion 23-97 confirms separate ratings for instability and limitation of motion on the same knee. Cite this in your claim if the rater bundles them.
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Source: 38 CFR Part 4 (VA Schedule for Rating Disabilities) and VA M21-1 Adjudication Procedures Manual. This guide explains the regulation; it is not legal advice and does not substitute for an accredited VA claims agent or VSO. Find a free VSO at va.gov/ogc/apps/accreditation.