HL7 v2.3.1 Vocabulary
0.1.0 - ci-build

HL7 v2.3.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v231/ and changes regularly. See the Directory of published versions

## CodeSystem: Occurrence Span (2.3.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/nubc-OccurrenceSpan-cs | Version: 1.0.0
Active as of 2026-01-27 | Computable Name: Nubc-OccurrenceSpan-cs
Other Identifiers: OID:2.16.840.1.113883.6.301.8
Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts specifying a National Uniform Billing Committee (NUBC) code that identifies an event that relates to the payment of a claim. The UB-04 Data Specifications Manual with the codes is available by subscription from NUBC at http://www.nubc.org/become.html. Used in HL7 Version 2.x messaging in the Occurrence Span Code and Date (OSP) value. Updated by NUBC annually; see the coding instructions for more detail.

This Code system is referenced in the content logical definition of the following value sets:

- Hl7VSoccurrenceSpan

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description
versionIntroduced | versionIntroduced | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced | string | version when was this code introduced
versionDeprecated | versionDeprecated | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated | string | version when was this code deprecated
status | status | http://hl7.org/fhir/concept-properties#status | code | A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment | comment | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment | string | A string that provides additional detail pertinent to the use or understanding of the concept
usage | usage | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage | string | usage notes for this code
modified | modified | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified | dateTime | date of last modification

Concepts

This case-sensitive code system `http://terminology.hl7.org/v2plusvocab/CodeSystem/nubc-OccurrenceSpan-cs` defines the following codes:

Code | Display | Definition | versionIntroduced | modified
70 | Qualifying stay dates for SNF | Qualifying stay dates for SNF | 2.3.1 |
71 | Prior stay dates | Prior stay dates | 2.3.1 |
72 | First/last visit | First/last visit | 2.3.1 |
73 | Benefit eligibility period | Benefit eligibility period | 2.3.1 |
74 | Non-covered level of care | Non-covered level of care | 2.3.1 |
75 | SNF level of care | SNF level of care | 2.3.1 |
76 | Patient liability | Patient liability | 2.3.1 |
77 | Provider liability period | Provider liability period | 2.3.1 |
78 | SNF prior stay dates | SNF prior stay dates | 2.3.1 |
79 | Payer code | Payer code | 2.3.1 |
M0 | PSRO/UR approved stay dates | PSRO/UR approved stay dates | 2.3.1 | 2025-08-02