Years of working with my team submitting the Prior Authorizations needed for IVIG or SqIG treatment for patients has lent me a lot of experience. The problems and pitfalls are everywhere. Something that we cannot avoid is Medicare guidelines. We must follow them exactly or risk a denial and delay in treatment for our patients. So as quickly as I can here are three things to remember when submitting a PA.
Match the Diagnosis Codes - So Important but often missed. If the MD is documenting one dx code in the notes and another on the Rx or the labs. This is a sure way to get a Medicare denial. The Dx Code need to be very clearly matching on all documentation. If there is even the slightest difference or indication in the notes of a differing Dx code then a denial could be near.
Solution: Double check the clinical notes, Labs and Rx to ensure they all say the same ICD-10 Code.
Primary Diagnosis Code is #1 - When submitting a PA make sure the Primary Dx code you want to get approved for Immunoglobin is listed as the “Primary”. If it is listed as secondary then you run the risk of Medicare denying the PA.
Solution: Think of Medicare as a “Checklist not up for interpretation”. Medicare guidelines are very strict and if there’s a small mistake they will deny the PA. The Primary Dx code line seems like an easy mistake but can cause major issues!
The Dreaded B VS D Denial - Here we go, the worst of the worst! The Dreaded B Vs D Denial! If you get this back after submitting a PA, you are in for the long haul. Your first step is to call me :) But if you can’t then you need to find where the issue is and backtrack. This denial is triggered because somewhere along the line a Dx code approved under Medicare Part B was used AND a Dx code approved under Part D was also used. Either they were included in the Notes and then a different Dx code was used in the Rx. The problem with this is inconsistency. Find it and change it!
Solution: Below is a list of Diagnosis codes Covered by Medicare Part B. If you are using a Dx code NOT on the list, that means the code would be used under Part D.
IVIG/SCIGICD-10 codes that are Medicare covered diagnoses for Part B in the home
G11.3- Cerebellar ataxia with defective DNA repair
D80.0- Hereditary hypogammaglobulinemia
D80.2- Selective deficiency of immunoglobulin A [IgA]
D80.3- Selective deficiency of immunoglobulin G [IgG] subclasses
D80.4- Selective deficiency of immunoglobulin M [IgM]
D80.5- Immunodeficiency with increased immunoglobulin M [IgM]
D80.6- Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinemia
D80.7- Transient hypogammaglobulinemia of infancy
D81.0- Severe combined immunodeficiency [SCID] with reticular dysgenesis
D81.1- Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
D81.2- Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
D81.5- Purine nucleoside phosphorylase [PNP] deficiency
D81.6- Major histocompatibility complex class I deficiency
D81.7- Major histocompatibility complex class II deficiency
D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS] *New Oct 22
D81.89- Other combined immunodeficiencies
D81.9- Combined immunodeficiency, unspecified
D82.0- Wiskott-Aldrich syndrome
D82.1- Di George syndrome
D82.4- Hyperimmunoglobulin E [IgE] syndrome
D83.0- Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function
D83.1- Common variable immunodeficiency with predominant immunoregulatory T-cell disorders
D83.2- Common variable immunodeficiency with autoantibodies to B- or T-cells
D83.8-Other common variable immunodeficiencies
D83.9- Common variable immunodeficiency, unspecified