TRICARE Policy Manual 6010.60-M, April 1, 2015 Extended Care Health Option (ECHO) Chapter 9 Section 6.1 Diagnostic Services Issue Date: July 3, 1997 Authority: 32 CFR 199.5(c)(1) Revision: 1.0 HCPCS PROCEDURE CODESAll valid HCPCS Levels I and II codes. 2.0 POLICYDiagnostic services that are capable of establishing a qualifying condition, confirming the severity of the disabling effects of a qualifying condition, or measuring the extent of functional loss, may be cost-shared subject to all other applicable Extended Care Health Option (ECHO) requirements. 3.0 EXCLUSIONDiagnostic services available under the TRICARE Basic Program are not eligible to be cost-shared under the ECHO. 4.0 EFFECTIVE DATESeptember 1, 2005. - END -