HL7 v2.4 Vocabulary
0.1.0 - ci-build

HL7 v2.4 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.v24/ and changes regularly. See the Directory of published versions

CodeSystem: Occurrence Code (2.4 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/nubc-OccurrenceCode-cs Version: 1.0.0
Active as of 2026-01-27 Computable Name: Nubc-OccurrenceCode-cs
Other Identifiers: OID:2.16.840.1.113883.6.301.7

Copyright/Legal: HL7 Inc., 2026

National Uniform Billing Committee (NUBC) UB-04 Data Specifications Manual, UB form locator 31 - 34, Occurrence Codes and Amounts - code and associated date defining a significant event relating to the bill that may affect payer processing the 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 OCD segment. 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:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
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-OccurrenceCode-cs defines the following codes:

CodeDisplayDefinitionversionIntroduced
01 Auto accident Auto accident 2.3.1
02 No fault insurance involved-including auto accident/other No fault insurance involved-including auto accident/other 2.3.1
03 Accident/tort liability Accident/tort liability 2.3.1
04 Accident/employment related Accident/employment related 2.3.1
05 Other accident Other accident 2.3.1
06 Crime victim Crime victim 2.3.1
09 Start of infertility treatment cycle Start of infertility treatment cycle 2.3.1
10 Last menstrual period Last menstrual period 2.3.1
11 Onset of symptoms/illness Onset of symptoms/illness 2.3.1
12 Date of onset for a chronically dependent individual Date of onset for a chronically dependent individual 2.3.1
17 Date outpatient occupational therapy plan established or last reviewed Date outpatient occupational therapy plan established or last reviewed 2.3.1
18 Date of retirement patient/beneficiary Date of retirement patient/beneficiary 2.3.1
19 Date of retirement spouse Date of retirement spouse 2.3.1
20 Guarantee of payment began Guarantee of payment began 2.3.1
21 UR notice received UR notice received 2.3.1
22 Date active care ended Date active care ended 2.3.1
24 Date insurance denied Date insurance denied 2.3.1
25 Date benefits terminated by primary payor Date benefits terminated by primary payor 2.3.1
26 Date SNF bed available Date SNF bed available 2.3.1
27 Date home health plan established Date home health plan established 2.3.1
28 Spouse's date of birth Spouse's date of birth 2.3.1
29 Date outpatient physical therapy plan established or last reviewed Date outpatient physical therapy plan established or last reviewed 2.3.1
30 Date outpatient speech pathology plan established or last reviewed Date outpatient speech pathology plan established or last reviewed 2.3.1
31 Date beneficiary notified of intent to bill (accommodations) Date beneficiary notified of intent to bill (accommodations) 2.3.1
32 Date beneficiary notified of intent to bill (procedures or treatments) Date beneficiary notified of intent to bill (procedures or treatments) 2.3.1
33 First day of the Medicare coordination period for ESRD beneficiaries covered by EGHP First day of the Medicare coordination period for ESRD beneficiaries covered by EGHP 2.3.1
34 Date of election of extended care facilities Date of election of extended care facilities 2.3.1
35 Date treatment started for P.T. Date treatment started for P.T. 2.3.1
36 Date of inpatient hospital discharge for covered transplant patients Date of inpatient hospital discharge for covered transplant patients 2.3.1
37 Date of inpatient hospital discharge for non-covered transplant patient Date of inpatient hospital discharge for non-covered transplant patient 2.3.1
40 Scheduled date of admission Scheduled date of admission 2.3.1
41 Date of first test for pre-admission testing Date of first test for pre-admission testing 2.3.1
42 Date of discharge Date of discharge 2.3.1
43 Scheduled date of canceled surgery Scheduled date of canceled surgery 2.3.1
44 Date treatment started for O.T. Date treatment started for O.T. 2.3.1
45 Date treatment started for S.T. Date treatment started for S.T. 2.3.1
46 Date treatment started for cardiac rehab. Date treatment started for cardiac rehab. 2.3.1
47 Payer codes Payer codes 2.3.1
48 Payer codes Payer codes 2.3.1
49 Payer codes Payer codes 2.3.1
50 Date lien released Date lien released 2.3.1
51 Date treatment started for psychiatric care Date treatment started for psychiatric care 2.3.1
70 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
71 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
72 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
73 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
74 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
75 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
76 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
77 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
78 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
79 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
80 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
81 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
82 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
83 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
84 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
85 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
86 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
87 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
88 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
89 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
90 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
91 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
92 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
93 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
94 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
95 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
96 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
97 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
98 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
99 Occurrence span codes and dates Occurrence span codes and dates 2.3.1
A1 Birthdate - insured A Birthdate - insured A 2.3.1
A2 Effective date - insured A policy Effective date - insured A policy 2.3.1
A3 Benefits exhausted payer A Benefits exhausted payer A 2.3.1