US Medicare Health Insurance Claim (HIC) Number

A HIC number (HICN) is a Medicare beneficiary's identification number. Both CMS and the Railroad Retirement Board (RRB) issue Medicare HIC numbers.

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Regex expressions	Description	Score
`\b[A-Z]{0,3}[0-9]{9}[0-9A-Z]{1,3}\b`	Matches a 10-15-character long alphanumeric string without a delimiter and checks the following: Characters (0–3) are [A-Z] Followed by a 9-digit number [0–9] Last 3 characters are [A–Z, 0–9]	1
`\b[A-Z]{0,3}[0-9]{3} [0-9]{6}[0-9A-Z]{1,3}\b`	Matches a 10-15-character long alphanumeric string delimited by space and checks the following: Characters (0–3) are [A-Z] Followed by a 9-digit number [0–9] Last 3 characters are [A–Z, 0–9]	1
`\b[A-Z]{0,3}-[0-9]{3} [0-9]{2}-[0-9]{4}-[0-9A-Z]{1,3}\b`	Matches a 10-15-character long alphanumeric string delimited by space and hyphen and checks the following: Characters (0–3) are [A-Z] Followed by a 9-digit number [0–9] Last 3 characters are [A–Z, 0–9]	1
`\b[A-Z]{0,3}-[0-9]{3}-[0-9]{2}-[0-9]{4}-[0-9A-Z]{1,3}\b`	Matches a 10-15-character long alphanumeric string delimited by hyphen and checks the following: Characters (0–3) are [A-Z] Followed by a 9-digit number [0–9] Last 3 characters are [A–Z, 0–9]	1

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