---
id: "de_kvnr"
kind: "datatype"
status: "draft"
is_pii: true
categories: ["pii", "persons", "medical"]
country: ["DE"]
langs: ["common"]
quality: 100
url: "http://registry.apicrafter.io/datatype/de_kvnr"
---

# German health insurance number (Krankenversichertennummer, KVNR) (`de_kvnr`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Krankenversichertennummer (KVNR), the lifelong number of a person in the German statutory health insurance (§ 290 SGB V), printed on the electronic health card. The fixed part has ten characters: a random capital letter, eight random digits and a check digit. For the check, the letter becomes its position in the alphabet as two digits (A=01 ... Z=26), the ten digits are weighted 1 2 1 2 ..., and the digit sums of the products are added modulo 10. It is derived from the pension insurance number in a way that cannot be reversed. In data exchange the insurer code (IK) and further check digits follow, which gives 20 or 30 characters.

- Personal data (PII): yes
- Categories: Personally identifiable information (pii), Person related (persons), Medical/pharma identifiers (medical)
- Countries: Germany (DE)
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^[A-Z]\d{9}$
```

Check digit algorithm: `de_kvnr`

## Examples

- `B512615085` — Synthetic number with a valid check digit
- `Z187843209` — Synthetic number with a valid check digit
- `B512615086` (invalid example) — Check digit does not match
- `1512615085` (invalid example) — The first character is a letter

## Mappings

- dpv: `pd:OfficialID`
- fhir: `http://fhir.de/sid/gkv/kvid-10`
- presidio: `DE_HEALTH_INSURANCE`

## Supported by tools

- `presidio`

## Translations

- de: Krankenversichertennummer (KVNR)
- ru: Номер застрахованного в обязательном медицинском страховании Германии (KVNR): Пожизненный номер застрахованного на электронной карте медицинского страхования - буква, восемь случайных цифр и контрольная цифра.

## Sources

- wikipedia: <https://de.wikipedia.org/wiki/Krankenversichertennummer>

## Quality

Score 100/100.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/de_kvnr.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/DE/persons/de_kvnr.yaml>