Post-market clinical follow-up for continued assessment of safety and performance to confirm long-term outcomes of the Axonics SNM System INS Model 5101.

This post-market clinical follow-up (PMCF) is conducted to assess the continued safety, device performance, and clinical benefit of the rechargeable Axonics SNM System INS Model 5101 also referred to as R20.

Inclusion Criteria:

1. 18 years or older
2. Primary indication of OAB (urinary urgency incontinence (UUI) / urinary frequency (UF) who are not candidates for, or who have failed conservative treatment
3. Willing and capable to provide written consent and agrees to comply with specified evaluations at clinical centers for all follow-up assessments

Exclusion Criteria:

1. Any significant medical condition that is likely to interfere with procedures, device operation, or likely to confound evaluation of endpoints (i.e., neurological conditions such as multiple sclerosis)
2. Any psychiatric or personality disorder that is likely to interfere with procedures at the discretion of the participating physician; this may include poor understanding or compliance with requirements
3. Previously underwent an external sacral neuromodulation SNM trial and was deemed a non-responder or was previously implanted with a sacral neuromodulation device and did not get therapeutic benefit (a non-responder)
4. History of allergic response to titanium, zirconia, polyurethane, epoxy, or silicone
5. A female who is breastfeeding
6. A female with a positive urine pregnancy test