Singapore NRIC (used as health ID) Regex for Python

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 Python. 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 Python project — whether you're validating in a Django view, a FastAPI endpoint, or a standalone data processing script.

Python Implementation

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

import re

singapore_nric_used_as_health_id_pattern = re.compile(r'^([STFGM][0-9]{7}[A-Z])$')

def validate_singapore_nric_used_as_health_id(value: str) -> bool:
    return bool(singapore_nric_used_as_health_id_pattern.fullmatch(value))

# Example
print(validate_singapore_nric_used_as_health_id("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 Python developers because particularly important in Python web servers where CPU-bound regex operations can stall concurrent request handling. 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.