SMC-K: Loss or Loss of Use of a Body Part

What qualifies for SMC-K

• Anatomical loss or loss of use of one hand or one foot.
• Loss of use of both buttocks (from disease or injury, e.g., severe sciatic nerve damage).
• Anatomical loss or loss of use of one or more creative organs (testicles, ovaries, or the uterus; documented erectile dysfunction with diagnosed organic cause).
• Loss of 25% or more of natural breast tissue from disease (including mastectomy).
• Blindness of one eye with light perception only.
• Complete deafness of one or both ears (when not already compensable at the maximum schedular level).
• Permanent and complete paralysis of both lower extremities (paraplegia) — typically also triggers a higher letter.

How 'loss of use' is defined

Under 38 CFR § 3.350(a)(2), 'loss of use' means the remaining function is so limited that the veteran would be equally well served by an amputation with a suitable prosthesis. This includes complete paralysis, footdrop with no useful movement, or balance/coordination so impaired the limb cannot be used for any purpose.

Erectile dysfunction qualifies for SMC-K when caused by a service-connected condition (e.g., diabetes, prostate cancer, pelvic injury, PTSD-medication side effects with documented organic cause). VA pays SMC-K for loss of use of a creative organ even without anatomical removal.

Stacking rules

• K is paid in addition to the regular monthly compensation, not as a replacement.
• Up to three separate K awards (or the K equivalent inside higher letters) can be paid concurrently for distinct losses.
• When a higher SMC letter is awarded (L, M, N, O, R), K add-ons for additional qualifying losses still apply.
• K can push the combined SMC payment above the 100% schedular maximum, which is one of the few legitimate ways to exceed it.

Evidence to submit

• Operative report (mastectomy, orchiectomy, amputation) or imaging confirming anatomical loss.
• Neurological exam or DBQ documenting loss of use (range of motion, motor strength 0/5, muscle atrophy).
• Urology consult or specific ED questionnaire from the treating provider for creative organ claims.
• Audiogram for deafness; ophthalmology exam for monocular blindness.

How to claim

1. On VA Form 21-526EZ, list each qualifying loss separately under 'disabilities.'
2. Attach the supporting medical document for each loss claimed.
3. For ED-based SMC-K, ensure the underlying service-connected condition (diabetes, prostate cancer, PTSD with antidepressant-induced ED, etc.) is already service-connected or claimed in the same submission.
4. If a prior rating decision granted the underlying condition but did not award SMC-K, file a Supplemental Claim with the urology/ED documentation.

Where these claims break down

• ×Forgetting SMC-K for erectile dysfunction secondary to a service-connected condition — one of the most commonly missed entitlements.
• ×Claiming 'loss of use' without medical evidence of equivalent-to-amputation function.
• ×Not stacking multiple K awards when a veteran has multiple distinct losses.

Frequently Asked Questions