UK_NHS_ID (UK - Nat hlth id)

Property	Value
A technical identifier, unique in a certain context. Technical key	UK_NHS_ID
The country a linked concept is active or generally relevant for. Country scope	GB (United Kingdom of Great Britain and Northern Ireland)
Language-specific name. Monolingual name	National Health Service Number (en)
Language-specific short name. Monolingual short name	UK - Nat hlth id (en)
Informal and comprehensive human-readable definition of a concept. Description	The NHS Number is the ten-digit identifier, including a check digit, that is issued to everyone registered with the National Health Service in the United Kingdom, usually on first registration with a general practitioner. It links a patient to their health records across the healthcare system and so ensures continuity of care.
Category of business identifiers. Identifier category	Identification Number

Formal definition

Details	Informal and comprehensive human-readable definition of a concept. Description	The type in terms of a categorization of regular expressions. Regular expression type	TThe formal expression of a regular expression. Regular expression
Regular expression/UK NHS ID/format	Validates the format of the British NHS number, the unique identifier used across the National Health Service to identify an individual in health records and services. The pattern accepts ten digits, conventionally written in groups of three, three and four.	IDENTIFIER_FORMAT	^\d{3}\s?\d{3}\s?\d{4}$

Data quality rules

Data quality rule	The country a linked concept is active or generally relevant for. Country scope	Informal and comprehensive human-readable definition of a concept. Description	Criticality<br/>Specifies how critical of the violation of a data quality rule.<br/>ERROR: Indicates a critical data quality rule violation that requires correction.<br/>WARNING: Indicates a potential data quality issue that should be reviewed.<br/>INFO: Indicates an informational finding with no immediate impact on data quality. Criticality	Rule release status<br/>The release status in terms of development progress or maturity of a data quality rule.<br/>IDEA: Initial rule definition that documents a business requirement but is not yet active in services.<br/>PLANNED: Rule is specified and scheduled for implementation, but not yet active in services.<br/>DRAFT: Rule concept is being prepared or refined but is not yet finalized for implementation or execution.<br/>HYPERCARE: Rule is newly released and under increased observation to ensure stable behaviour and correct results.<br/>RELEASED: Rule has passed verification and is actively executed in productive CDQ services.<br/>DEACTIVATED: Rule is temporarily removed from the active rule set because it needs correction or clarification before re release.<br/>BLOCKED: Rule cannot be released because something it depends on is missing, for example a data source or a clarification.<br/>ARCHIVED: Rule is permanently retired and no longer maintained or intended for future activation. Rule release status
Identifier format invalid (NHS number (United Kingdom)) REPRESENTATIONAL_CONSISTENCY	GB (United Kingdom of Great Britain and Northern Ireland)	This rule checks the structure of the NHS number, which has ten digits and is written in the form 123 456 7890. The first nine digits are a unique sequence and the tenth is a check digit calculated from them with a weighted modulus 11 algorithm.	ERROR	RELEASED(2025-01-16)