There is no dedicated CPT code for MonaLisa Touch. The American Medical Association has not created a unique billing code for this specific laser, so practices report it under CPT 58999, the unlisted procedure code for the female genital system. That single fact drives almost every billing and reimbursement problem practices run into with this treatment.
If your practice offers MonaLisa Touch and you are staring down a denial, or your biller keeps asking which code applies, this guide walks through what actually happens in the claim, why insurers push back, and what documentation gives you the best shot at reimbursement.
What Is MonaLisa Touch, Exactly?
MonaLisa Touch is a fractional CO2 laser treatment used mostly in gynecology. Physicians use it to treat vaginal atrophy and genitourinary syndrome of menopause, often called GSM. The laser stimulates collagen production in vaginal tissue that has thinned from declining estrogen.
A typical session takes about five minutes in the office. Most patients need three sessions spaced roughly six weeks apart, followed by an annual maintenance visit. No anesthesia is required. For patients who cannot use estrogen based therapies, including many breast cancer survivors, it is often the only nonhormonal option on the table.
CPT codes exist so payers know exactly what procedure a claim describes. New technologies without a Category I code get reported under an unlisted procedure code instead, and that is where MonaLisa Touch sits today. The AMA CPT code set has not assigned it a permanent code, in part because payers still classify laser vaginal rejuvenation as elective rather than medically necessary.
Getting an unlisted code claim approved takes more than picking the right number. Our AAPC certified coding team handles diagnosis pairing, unlisted code documentation, and payer specific claim requirements across specialties.
Getting stuck on unlisted codes?
Coders should not confuse CPT Code 58999 with codes for unrelated laser applications. Cold laser therapy for pain uses CPT Code 97026. Class IV therapeutic laser falls under CPT Code 97039. Neither applies here, and mixing them up is a fast route to a denial or an audit flag.
Will Insurance Cover It?
Rarely, and you should set that expectation with patients before the first visit. Most commercial payers classify MonaLisa Touch as cosmetic or elective, even when the diagnosis is a documented medical condition. The lack of a dedicated CPT code makes the review harder from the start, since unlisted codes get manually priced and manually judged on medical necessity every single time.
Medicare presents its own wrinkle. There is no national coverage determination specifically addressing vaginal laser therapy, so regional Medicare Administrative Contractors decide case by case under the broader laser procedures policy. Given that MonaLisa Touch lacks FDA clearance for this specific indication, approval through Medicare is no more likely than through a commercial plan.
One scenario improves the odds slightly. Patients whose vaginal atrophy resulted directly from cancer treatment, such as chemotherapy, radiation, or hormone blocking therapy, have a somewhat stronger case for a medical necessity claim. Even then, expect prior authorization to be mandatory and the documentation bar to be high. Practices that also struggle with denied claims on the appeal side can see how a structured appeals process works on our Denial Management Services page.
Documentation That Actually Moves the Needle
Unlisted code claims live or die on the paperwork attached to them. Build the file before you submit, not after the first denial.
- A letter of medical necessity from the treating physician
- The specific ICD-10 diagnosis code supporting the treatment
- Documentation of conservative therapies tried and failed, such as topical estrogen or moisturizers
- Clinical notes describing symptom severity and functional impact
- For cancer related cases, records connecting the atrophy directly to treatment history
Practices that skip straight to submitting the claim with a bare 58999 code and no supporting narrative see denial rates far higher than practices that front load the documentation.
What About State Menopause Coverage Laws?
A handful of states have started passing menopause coverage legislation. New Jersey has an active law, and Illinois passed a similar measure effective January 2026 focused on menopause caused by hysterectomy. Michigan and California have introduced comparable bills, though California’s version was vetoed in 2024.
These laws generally require coverage for medically necessary menopause treatments, including nonhormonal options. Whether that language stretches to cover a treatment that major medical societies still classify as investigational remains unsettled. Do not promise patients coverage based on a new state law until the payer confirms it in writing.
The Bottom Line for Billers
Until the AMA assigns MonaLisa Touch a dedicated code, every claim runs through CPT 58999 with a manual review attached. Set patient expectations early, build the documentation file before submission, and treat cancer related cases as the strongest angle for a medical necessity appeal. Most practices ultimately position this as a cash pay service, with sessions typically running 500 to 1,000 dollars each or discounted as a package.
Coding an unlisted procedure correctly the first time saves weeks of appeals. If your team is spending more time fighting denials than seeing patients, schedule a free revenue cycle audit and we will show you exactly where the claim is breaking down.
