insurance_plan_type choices:

Value Description
AM Automobile Medical
BL Blue Cross/Blue Shield
CH Champus
CI Commercial Insurance Co.
17 Dental Maintenance Organization
DS Disability
14 Exclusive Provider Organization (EPO)
FI Federal Employees Program
HM Health Maintenance Organization
16 Health Maintenance Organization (HMO) Medicare Risk
15 Indemnity Insurance
LM Liability Medical
MC Medicaid
MA Medicare Part A
MB Medicare Part B
ZZ Mutually Defined
OF Other Federal Program
11 Other Non-Federal Programs
13 Point of Service (POS)
12 Preferred Provider Organization (PPO)
TV Title V
VA Veterans Affairs Plan
WC Workers' Compensation Health Claim