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BCBS Alpha Numeric Prefix List (E2A to E9Z)

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Today you will find The BCBS Alpha Numeric Prefix List from E2A to E9Z.

The alpha Numeric Prefix is very important to the identification number. The prefix acts as a key element in confirming the members’ eligibility and coverage information. Prefixes are also used to identify and correctly route claims to the appropriate Blue Cross Blue Shield Plan for processing.

Most members with coverage through a Blue Cross Blue Shield Plan are assigned a Three Letter alpha Prefix as a part of their unique identification number. The alpha prefix can easily be identified as it is the first three characters. 

BCBS Alpha Numeric Prefix List (E2A to E9Z)

S.No Prefix BCBS Company Name
1 E2A Blue Cross Blue Shield of Texas
2 E2B Blue Cross Blue Shield of Texas
3 E2C Anthem Blue Cross Blue Shield of Indiana
4 E2D Carefirst Blue Cross Blue Shield
5 E2E Regence Blue Cross Blue Shield
6 E2F Anthem Blue Cross of California
7 E2G Anthem Blue Cross of California
8 E2H Anthem Blue Cross of California
9 E2I Unassigned Prefix
10 E2J Anthem Blue Cross of California
11 E2K Blue Cross Blue Shield of Illinois
12 E2L Blue Cross of Massachusetts
13 E2M Blue Cross Blue Shield of Texas
14 E2N Blue Cross Blue Shield of Illinois
15 E2O Unassigned Prefix
16 E2P Anthem Blue Cross of California
17 E2Q Anthem Blue Cross of California
18 E2R Anthem Blue Cross of California
19 E2S Regence Blue Cross Blue Shield
20 E2T Blue Cross of Massachusetts
21 E2U Anthem Blue Cross of California
22 E2V Blue Cross Blue Shield of Illinois
23 E2W Anthem Blue Cross of California
24 E2X Anthem Blue Cross of California
25 E2Y Anthem Blue Cross of California
26 E2Z Anthem Blue Cross of California
27 E3A Blue Cross of Massachusetts
28 E3B Anthem Blue Cross of California
29 E3C Anthem Blue Cross of California
30 E3D Anthem Blue Cross of California
31 E3E Anthem Blue Cross of California
32 E3F Anthem Blue Cross of California
33 E3G Blue Cross Blue Shield of Illinois
34 E3H Anthem Blue Cross of California
35 E3I Unassigned Prefix
36 E3J Anthem Blue Cross of California
37 E3K Anthem Blue Cross of California
38 E3L Empire Blue Cross Blue Shield
39 E3M Anthem Blue Cross Blue Shield of Wisconsin
40 E3N Premera Blue Cross
41 E3O Unassigned Prefix
42 E3P Anthem Blue Cross Blue Shield of Wisconsin
43 E3Q Anthem Blue Cross of California
44 E3R Anthem Blue Cross Blue Shield of Ohio
45 E3S Blue Cross Blue Shield of Illinois
46 E3T Anthem Blue Cross of California
47 E3U Empire Blue Cross Blue Shield
48 E3V Blue Cross Blue Shield of Illinois
49 E3W Carefirst Blue Cross Blue Shield
50 E3X Anthem Blue Cross Blue Shield of Wisconsin
51 E3Y Anthem Blue Cross Blue Shield of Georgia
52 E3Z Anthem Blue Cross Blue Shield of Wisconsin
53 E4A Blue Cross of Massachusetts
54 E4B Blue Cross of Massachusetts
55 E4C Blue Cross of Massachusetts
56 E4D Blue Cross of Massachusetts
57 E4E Blue Cross of Massachusetts
58 E4F Anthem Blue Cross of California
59 E4G Carefirst Blue Cross Blue Shield
60 E4H Anthem Blue Cross of California
61 E4I Unassigned Prefix
62 E4J Blue Cross Blue Shield of Illinois
63 E4K Anthem Blue Cross Blue Shield of Georgia
64 E4L Anthem Blue Cross Blue Shield of Indiana
65 E4M Anthem Blue Cross Blue Shield of Georgia
66 E4N Carefirst Blue Cross Blue Shield
67 E4O Unassigned Prefix
68 E4P Empire Blue Cross Blue Shield
69 E4Q Blue Cross Blue Shield of Massachusetts
70 E4R Carefirst Blue Cross Blue Shield
71 E4S Anthem Blue Cross Blue Shield of Ohio
72 E4T Anthem Blue Cross Blue Shield of Colorado
73 E4U Carefirst Blue Cross Blue Shield
74 E4V Carefirst Blue Cross Blue Shield
75 E4W Empire Blue Cross Blue Shield
76 E4X Anthem Blue Cross Blue Shield of Wisconsin
77 E4Y Carefirst Blue Cross Blue Shield
78 E4Z Blue Cross Blue Shield of Tennessee
79 E5A Blue Cross Blue Shield of Texas
80 E5B Anthem Blue Cross of California
81 E5C Blue Cross Blue Shield of Rhode Island
82 E5D Premera Blue Cross Blue Shield of Alaska
83 E5E Anthem Blue Cross Blue Shield of Nevada
84 E5F Carefirst Blue Cross Blue Shield
85 E5G Carefirst Blue Cross Blue Shield
86 E5H Premera Blue Cross Blue Shield of Alaska
87 E5I Unassigned Prefix
88 E5J Carefirst Blue Cross Blue Shield
89 E5K Blue Cross Blue Shield of Texas
90 E5L Blue Cross Blue Shield of Texas
91 E5M Highmark Blue Shield
92 E5N Blue Cross Blue Shield of Texas
93 E5O Unassigned Prefix
94 E5P Anthem Blue Cross Blue Shield of Missouri
95 E5Q Anthem Blue Cross Blue Shield of Nevada
96 E5R Anthem Blue Cross Blue Shield of Missouri
97 E5S Blue Cross Blue Shield of Texas
98 E5T Blue Cross Blue Shield of Alabama
99 E5U Carefirst Blue Cross Blue Shield
100 E5V Blue Cross Blue Shield of Texas
101 E5W Carefirst Blue Cross Blue Shield
102 E5X Premera Blue Cross
103 E5Y Carefirst Blue Cross Blue Shield
104 E5Z Carefirst Blue Cross Blue Shield
105 E6A Anthem Blue Cross Blue Shield of Ohio
106 E6B Carefirst Blue Cross Blue Shield
107 E6C Anthem Blue Cross Blue Shield of Indiana
108 E6D Empire Blue Cross Blue Shield
109 E6E Highmark Blue Cross Blue Shield
110 E6F Blue Cross Blue Shield of Illinois
111 E6G Highmark Blue Cross Blue Shield
112 E6H Anthem Blue Cross Blue Shield of New Hampshire
113 E6I Unassigned Prefix
114 E6J Highmark Blue Cross Blue Shield
115 E6K Highmark Blue Cross Blue Shield
116 E6L Anthem Blue Cross Blue Shield of Nevada
117 E6M Anthem Blue Cross Blue Shield of Ohio
118 E6N Blue Cross Blue Shield of Texas
119 E6O Highmark Blue Cross Blue Shield
120 E6P Anthem Blue Cross Blue Shield of Missouri
121 E6Q Anthem Blue Cross Blue Shield of Nevada
122 E6R Anthem Blue Cross Blue Shield of Ohio
123 E6S Highmark Blue Shield
124 E6T Anthem Blue Cross Blue Shield of Wisconsin
125 E6U Highmark Blue Cross Blue Shield
126 E6V Empire Blue Cross Blue Shield
127 E6W Anthem Blue Cross Blue Shield of Nevada
128 E6X Carefirst Blue Cross Blue Shield
129 E6Y Highmark Blue Cross Blue Shield
130 E6Z Unassigned Prefix
131 E7A Anthem Blue Cross Blue Shield of Georgia
132 E7B Anthem Blue Cross Blue Shield of Indiana
133 E7C Anthem Blue Cross Blue Shield of Kentucky
134 E7D Anthem Blue Cross Blue Shield of Missouri
135 E7E Anthem Blue Cross Blue Shield of Indiana
136 E7F Anthem Blue Cross Blue Shield of Indiana
137 E7G Highmark Blue Cross Blue Shield
138 E7H Anthem Blue Cross Blue Shield of Ohio
139 E7I Unassigned Prefix
140 E7J Highmark Blue Cross Blue Shield
141 E7K Highmark Blue Cross Blue Shield
142 E7L Highmark Blue Cross Blue Shield
143 E7M Anthem Blue Cross of California
144 E7N Blue Cross Blue Shield of Texas
145 E7O Unassigned Prefix
146 E7P Highmark Blue Cross Blue Shield
147 E7Q Blue Cross Blue Shield of Massachusetts
148 E7R Carefirst Blue Cross Blue Shield
149 E7S Anthem Blue Cross of California
150 E7T Carefirst Blue Cross Blue Shield
151 E7U Blue Cross Blue Shield of Illinois
152 E7V Carefirst Blue Cross Blue Shield
153 E7W Anthem Blue Cross Blue Shield of Wisconsin
154 E7X Carefirst Blue Cross Blue Shield
155 E7Y Carefirst Blue Cross Blue Shield
156 E7Z Blue Cross Blue Shield of Massachusetts
157 E8A Independence Blue Cross
158 E8B Anthem Blue Cross of California
159 E8C Blue Cross Blue Shield of Texas
160 E8D Blue Cross Blue Shield of Illinois
161 E8E Blue Cross Blue Shield of Texas
162 E8F Empire Blue Cross Blue Shield
163 E8G Premera Blue Cross Blue Shield of Alaska
164 E8H Anthem Blue Cross Blue Shield of Missouri
165 E8I Unassigned Prefix
166 E8J Carefirst Blue Cross Blue Shield
167 E8K Carefirst Blue Cross Blue Shield
168 E8L Carefirst Blue Cross Blue Shield
169 E8M Blue Cross Blue Shield of Illinois
170 E8N Blue Cross Blue Shield of Texas
171 E8O Unassigned Prefix
172 E8P Unassigned Prefix
173 E8Q Regence Blue Cross Blue Shield
174 E8R Carefirst Blue Cross Blue Shield
175 E8S Anthem Blue Cross of California
176 E8T Anthem Blue Cross of California
177 E8U Carefirst Blue Cross Blue Shield
178 E8V Carefirst Blue Cross Blue Shield
179 E8W Carefirst Blue Cross Blue Shield
180 E8X Anthem Blue Cross of California
181 E8Y Carefirst Blue Cross Blue Shield
182 E8Z Anthem Blue Cross Blue Shield of Nevada
183 E9A Anthem Blue Cross Blue Shield of Wisconsin
184 E9B Anthem Blue Cross Blue Shield of Wisconsin
185 E9C Blue Cross Blue Shield of Texas
186 E9D Anthem Blue Cross Blue Shield of Missouri
187 E9E Blue Cross Blue Shield of Texas
188 E9F Carefirst Blue Cross Blue Shield
189 E9G Carefirst Blue Cross Blue Shield
190 E9H Blue Cross Blue Shield of Texas
191 E9I Unassigned Prefix
192 E9J Carefirst Blue Cross Blue Shield
193 E9K Carefirst Blue Cross Blue Shield
194 E9L Highmark Blue Cross Blue Shield
195 E9M Anthem Blue Cross Blue Shield of Virginia
196 E9N Blue Cross Blue Shield of Illinois
197 E9O Unassigned Prefix
198 E9P Carefirst Blue Cross Blue Shield
199 E9Q Unassigned Prefix
200 E9R Highmark Blue Cross Blue Shield
201 E9S Anthem Blue Cross Blue Shield of Missouri
202 E9T Carefirst Blue Cross Blue Shield
203 E9U Unassigned Prefix
204 E9V Anthem Blue Cross Blue Shield of Ohio
205 E9W Premera Blue Cross Blue Shield of Alaska
206 E9X Anthem Blue Cross of California
207 E9Y Blue Cross Blue Shield of Massachusetts
208 E9Z Carefirst Blue Cross Blue Shield
  Some identification cards may not include an alpha prefix, which may indicate that the claim filing instructions for these type policies are different. We suggest that you verify claim filing instructions during the time eligibility information is obtained. If not, please follow the instructions on the back of the member’s ID card or contact the plan directly. Member eligibility can be obtained at 1 (800) 676-BLUE (2583). Once connected, you will then simply provide the alpha prefix and the operator will then route you to the member’s plan. Helpful Tips Related to the Alpha Prefix:
  • Do not omit or randomly select an alpha prefix.
  • Do not substitute another Blue Cross Blue Shield Member’s prefix.
  • Include the alpha prefix and all alpha numeric characters preceding the alpha prefix on all correspondence and claims submitted to Blue Cross Blue Shield of Texas.
  • The alpha prefix is always three letters followed by the member’s ID number which can be from 6 up to 14 characters total.
  • If possible, make copies of the member’s ID card (front and back) for your records.
  • We recommend that you obtain a copy of the ID card any time there has been a coverage or policy change. If there are no changes, we suggest that you obtain card copies annually.

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Billing Executive – a Medical Billing and Coding Knowledge Base for Physicians, Office staff, Medical Billers and Coders, including resources pertaining to HCPCS Codes, CPT Codes, ICD-10 billing codes, Modifiers, POS Codes, Revenue Codes, Billing Errors, Denials and Rejections.
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