Does pet insurance cover Addison's disease in dogs?

What Addison's disease is

Your dog has two small glands near the kidneys. They make hormones that help the body handle stress and keep salt and water in balance. With Addison's, those glands stop making enough.

Vets call it "the great imitator." The signs come and go and look like lots of other things. Here is what to watch for:

• Being tired or low on energy.
• Throwing up or loose poop that comes and goes.
• Not wanting to eat, or slowly losing weight.
• Drinking and peeing more.
• Shaking or weak muscles.

Sudden collapse, a very slow heartbeat, or being hard to wake is an emergency. Go to an emergency vet right away.

The good news: Lemonade says most dogs do very well with the right care. It just never goes away. Dogs take medicine for life.

Old tummy trouble in vet notes

This is the tricky part. Addison's is often found late, because the early signs look like a sensitive stomach or a dog who is just getting older.

Lemonade says that once signs show up, the condition is typically considered pre-existing. So a few off weeks before you sign up can matter later.

Insurers read the vet records. Here is how far back some of them look:

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

If any of these show up before the wait ends, expect Addison's bills to be at risk:

• Throwing up or loose poop that came and went, with no clear cause.
• Weight loss or a poor appetite in the notes.
• A blood test that showed odd salt levels.
• A visit where the vet said your dog was weak, shaky, or dehydrated.
• A stomach-medicine or fluids visit for a dog that then bounced back.

Most of those visits turn out to be nothing. But if Addison's shows up later, a claims reviewer may look back and ask whether the early signs were the same problem.

Not sure what is in the record? Ask your vet for a copy before you shop. Embrace also offers a free Medical History Review after you buy, but you have to ask for it.

If your dog already has the diagnosis, assume it is carved out. Then decide if a policy still makes sense for other accidents and illnesses. See problems already in the record and senior dogs over 8.

Carrier-by-carrier (public pages)

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

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

• Lemonade:
  • Has a page on Addison's (updated June 2026). It says Addison's is covered on the base plan if it is not pre-existing.
  • Lists tests, medicine, and ongoing bloodwork. It says the Visit Fee add-on can help with the exam fee at each checkup.
  • Illness wait is 14 days. Signs in that window count as pre-existing.
• Embrace:
  • Has a page on Addison's. It says tests, daily hormone medicine, and regular checkups can be covered if it starts after the policy and the wait.
  • Pre-existing means anything that showed signs before the policy or during the wait.
  • It says early signs can be vague and easy to miss, which makes the wait period matter more.
• Fetch:
  • Fetch says pre-existing means anything noticed before signup or during its illness wait of up to 15 days.
  • Fetch says it can cover some curable pre-existing conditions. Addison's lasts for life, so do not count on that.
  • We did not find a Fetch page about Addison's by name. Verify on the quote form.
• Pets Best:
  • Its sample policy says a condition is pre-existing if a vet gave advice, the pet got treatment, or there were signs before the start date or during the wait.
  • We did not find a Pets Best page about Addison's by name. Accident Only does not cover illness.
• Spot:
  • Spot says signs before the policy and before the wait ends count as pre-existing, usually even if nothing was diagnosed.
  • We did not find a Spot page about Addison's by name. Verify on the quote form.
• Trupanion:
  • Trupanion looks back 18 months for signs before the start date.
  • Trupanion says it cannot tell you yes or no for a specific condition until a claim is sent. Waits are state-specific.
• AKC Pet Insurance (not in our quote buttons):
  • AKC says it may cover some pre-existing conditions, and lists Addison's, after 365 days in a row with coverage.
  • It says this is not available everywhere. Read the fine print and verify on its quote form.

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, yearly caps, exam-fee and medicine add-ons, and premiums are state-specific. Verify on the quote form and the issued policy.