---
oid: "2.16.840.1.113883.6.18.1.2"
description: "Four-character code corresponding to Information Standard for Blood and Transplant (ISBT) 128 Blood Groups \"ABO\" and \"RhD\" (Data Structure 002)"
last-modified: "2026-04-13"
parent-oid: "2.16.840.1.113883.6.18.1"
---

## OID: `2.16.840.1.113883.6.18.1.2`

```asn1
{joint-iso-itu-t(2) country(16) us(840) organization(1) hl7(113883) externalCodeSystems(6) 18 isbt128-datastructure(1) blood-groups(2)}
```

### Description

Four-character code corresponding to Information Standard for Blood and Transplant (ISBT) 128 Blood Groups "ABO" and "RhD" (Data Structure 002)

### Supplementary information

See IBT1-0004 in the IBT0001 Coding System Reference Table \[RT042\] of the [ISBT 128 Standard Technical Specification](https://iccbba.org/tech-spec/).

### Child OIDs

No child OID

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