Singapore NRIC (used as health ID) Regex for Go

What this pattern does

This page provides a lightweight, single-purpose regular expression for matching singapore nric (used as health id), ported and verified for Go. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your Go project — whether you're validating in a Gin handler, a gRPC service, or a command-line tool.

Go Implementation

// Singapore NRIC (used as health ID)
// ReDoS-safe | RegexVault — Identity & PII > Health Identifiers

package validation

import "regexp"

var singaporeNricUsedAsHealthIdRe = regexp.MustCompile(`^([STFGM][0-9]{7}[A-Z])$`)

func ValidateSingaporeNricUsedAsHealthId(s string) bool {
    return singaporeNricUsedAsHealthIdRe.MatchString(s)
}

// Example
// fmt.Println(ValidateSingaporeNricUsedAsHealthId("S1234567D")) // true

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > Health Identifiers category and carries a ReDoS-safe certification. That matters for Go developers because Go's RE2 engine is inherently safe from catastrophic backtracking, but this pattern has been additionally verified for correctness. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Singapore uses the NRIC number as the universal identifier across all government systems including healthcare. MOH (Ministry of Health), Polyclinic, and hospital systems all use NRIC as the patient identifier. See pii-nid-01 for full notes.