Coding and billing issues in hospital neurology compensation

Accurate coding and billing are critical for the financial health of hospitals. Neurologic inpatient services have specific, complex documentation requirements, which can result in inadequate billing.

We retrospectively compared coding practices from July 2013 to June 2014 (FY2014) using evaluation and management codes for initial inpatient encounters (CPT 99221-3) of a neurohospitalist group (NHG) to a hospital medicine group (HMG) and to national benchmarks. We further examined a sample of the lowest level encounters (CPT 99221) from the 4th quarter of FY2014 for specific deficiencies and compared these among groups.

Low codes (CPT 99221) were more common in the NHG than the HMG and national benchmarks (54% vs 7% vs 4%, p < 0.01). Deficiencies in the examination were the most common reason for low coding in the NHG compared to the HMG (62% vs 5%, p < 0.001). Deficiencies in social history were more common in the NHG than the HMG (11% vs 0%, p < 0.003) but deficiencies in family history (34% vs 37%, p = 0.75) and review of systems (30% vs 30%, p = 1.0) were common in both groups. In the NHG group, documentation did not reflect the acuity of patients' medical conditions.

Neurologists should pay close attention to documentation requirements-especially the neurologic examination-in order to allow for accurate coding and billing.