Does pet insurance cover degenerative myelopathy (DM) in dogs?

What DM is, in plain words

Degenerative myelopathy (most people just say DM) is a spinal cord disease. It slowly weakens a dog's back legs.

It does not hurt. But it does get worse over time, and there is no cure. Lemonade says signs often show up around age 8, though it can start anywhere from about 4 to 14.

Early signs pet parents notice:

• A wobbly or swaying back end.
• Back toenails scraping the ground, or worn-down nails.
• Back feet crossing or flipping over when walking.
• Trouble getting up, or slipping on smooth floors.

It runs in families, so insurers call it a hereditary condition. German Shepherds, Corgis, Boxers, and Bernese Mountain Dogs are some of the breeds that get it more.

There is no single test that proves it in a living dog. Vets rule out other problems first, like a slipped disc or a tumor. That can mean an MRI, X-rays, or a spinal fluid test.

Timing is everything

DM starts slow. That makes it easy to miss, and easy for it to land in the vet notes as something else.

Insurers read the records before they pay. Notes like these, from before signup, can get a DM claim turned down:

• "Weak in the back end" or "wobbly back legs."
• "Dragging back feet" or "scuffed toenails."
• A nerve check on the back legs.
• Back leg weakness that was blamed on old age or sore hips.

How far back they look depends on the carrier:

• Embrace and Fetch ask for about the last 12 months of records.
• Lemonade asks for about the last 12.5 months.
• Trupanion looks back 18 months for signs.

Signs during the waiting period count too. Most illness waits are about 14 to 15 days. See problems already in the record.

DM never counts as "cured." Some carriers drop a pre-existing label after a problem goes away for 6 to 12 months. DM does not go away, so that path will not help.

If your dog is in a high-risk breed and still walks fine, the best time to sign up is now. See senior dogs over 8 and German Shepherd insurance cost.

What a policy can pay for

If DM is covered on your plan, these are the bills that usually come up:

• Finding out what it is. Vet exams, X-rays, an MRI, or a spinal fluid test to rule out other problems. Some carriers need an exam-fee add-on for the visit itself.
• Rehab. Water therapy, guided exercise, and other physical therapy. Vets often say this helps keep a DM dog moving longer. See physical therapy.
• Medicine for side problems. For example, bladder infections when a dog loses bladder control later on. See incontinence and UTIs.
• A wheelchair cart, at some carriers only. See the next section.
• Saying goodbye. Some carriers pay for euthanasia when it is for a covered illness. See euthanasia.

Your deductible, payback %, and yearly cap still apply. DM care can go on for months or years, so a low yearly cap can run out.

Things a policy usually will not pay for: ramps, rugs, harnesses you buy on your own, and supplements a vet did not prescribe. Check the policy before you count on them.

Carrier-by-carrier (public pages)

These notes come from carrier public pages we read in October 2026. They are not personal underwriting.

Anything can go stale. Verify on the quote form and the issued policy.

• Lemonade:
  • Its DM page says the base plan covers nerve problems like DM if signs show up after the policy starts and the waits are over.
  • Rehab like water therapy needs the Physical Therapy add-on. Add it at the start.
  • Illness wait is 14 days.
• Embrace:
  • Says it covers conditions that run in families and in certain breeds, at no extra cost, if they are not pre-existing.
  • Physical therapy, water therapy, laser, and acupuncture are included for covered problems. Its physical therapy page lists DM as a reason dogs get therapy.
  • DNA testing is on its list of things it does not cover.
• Fetch:
  • Says it covers breed-specific and inherited conditions if they are not pre-existing.
  • Physical therapy is on its list of what the plan covers.
  • Illness wait is up to 15 days.
• Pets Best:
  • Inherited conditions can be covered if they are not pre-existing and the waits are met.
  • Wheelchairs and mobility carts may be covered when a vet prescribes them for a covered problem.
  • Physical therapy is included in most plans.
• Spot:
  • Lists hereditary conditions and alternative therapies on its accident-and-illness coverage page.
  • Signs before the plan starts or during the wait count as pre-existing.
• Trupanion:
  • Lists hereditary conditions and nervous system issues as covered.
  • Carts are in the main plan when your vet advises one for a covered problem.
  • Its mobility page says physical therapy comes with its Recovery and Complementary Care add-on, for an extra cost. Verify on the quote form.
  • Does not pay exam fees.
  • Looks back 18 months for signs. Says it cannot give a yes or no on a condition until a claim is sent.
• Healthy Paws:
  • Names degenerative myelopathy by name as a hereditary condition it can cover, if signs first show up after signup and the wait.
  • Its wait is 15 days in most states.
  • It does not pay for the exam fee at the vet visit.

Short version from public carrier pages. Rules change by state. Verify on the quote form. The long version, with sources, is on what counts as pre-existing.

Get a quote (official carrier URLs)

We do not run a fake quote widget. These buttons open the carrier.

Waiting periods, add-ons, yearly caps, and premiums are state-specific. Verify on the quote form and the issued policy.