Carriers rarely require biopsy proven AKs before destruction with 17000 and liquid nitrogen. By nature they are pre-malignant and likely to turn into squamous cell carcinoma. AKs are easily determined by provider examination and documentation of the characteristics of the lesions (located in sun-exposed areas, scaly, tender. Multiple AKS are also usually present in an affected area and individually biopsying multiple AKs prior to destruction is not cost-effective for most carriers.
Usually, for AKs clinical examination is sufficient.
Remember that ICD-10 states
"19. Code assignment and Clinical Criteria
The assignment of a
diagnosis code is based on the provider’s diagnostic statement that the condition exists. The provider’s statement that the patient has a particular condition is sufficient. Code assignment is not based on clinical criteria used by the provider to establish the diagnosis."
For comparison, Medicare's (not BCBS) National Coverage Determination policy states AKs are covered without restriction.
https://www.cms.gov/medicare-coverage-database/details/ncd-details.aspx?NCAId=238&NcaName=Allogeneic+Hematopoietic+Stem+Cell+Transplantation+(HSCT)+for+Myelodysplastic+Syndrome&ExpandComments=y&CommentPeriod=0&NCDId=129&ncdver=1&bc=AiAAAAAAIEAAAA%3D%3D&
In regard to destructions of other
benign lesions such as SKs, there are often medical necessity requirements (itching, bleeding, painful, etc.) that should be documented. Medical necessity requirements vary from carrier to carrier.
Again, Medicare LCDs are published and easier to locate for a comparison. I'm not sure where you are located (what state), but here is an example of an LCD for Medicare contractor (again not BCBS), but it shows you w
https://www.cms.gov/medicare-coverage-database/details/lcd-details.aspx?LCDId=34233
Your best defense is to have them
show you how/where to locate the published payment policy showing the medical necessity requirements.
AKs should be covered as they are
premalignant and have a higher probability of turning into a cancerous lesion such as SCC.
Inflamed seborrheic keratoses (L82.0) are usually covered by themselves without exception because they are inflamed! The
inflamed part is the medical necessity.
Locate the policy and go from there!