Evidence map›Paper›PMID 27925839›Full record

ArticleJournal of palliative medicine2017

Validation of the V66.7 Code for Palliative Care Consultation in a Single Academic Medical Center.

May Hua, Guohua Li, Caitlin Clancy, R Sean Morrison, Hannah Wunsch

Open access · greenAbstract readValidation Study
In one paragraph

Article in Journal of palliative medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
11.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

82 citing papers in PubMed, 149 citations in OpenAlex.

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  10. Racial disparities in palliative care among hospitalized older adults with traumatic brain injury.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
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22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

May Hua1 Department of Anesthesiology, Columbia University , New York, New York.
Guohua Li2 Department of Epidemiology, Columbia University Mailman School of Public Health , New York, New York.
Caitlin Clancy1 Department of Anesthesiology, Columbia University , New York, New York.
R Sean Morrison4 Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai , New York, New York.
Hannah Wunsch1 Department of Anesthesiology, Columbia University , New York, New York.
Columbia University · USIcahn School of Medicine at Mount Sinai · US

Funding

Determinants of Critical Care Intensity for Hospitalized Older Adults: the Effect of Hospital-based Palliative Care ServicesK08AG051184 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI HUA, MAY · 2015 to 2019
$863k
NIA NIH HHS K08 AG051184NIA NIH HHS L30 AG053861
6 · The paper itself

Abstract

backgroundUse of administrative data to study the effectiveness of specialized palliative care is limited by the lack of a reliable method to identify patients receiving palliative care consultation. The International Classification of Diseases, Ninth Revision (ICD-9) code V66.7 has been used, but its validity for this purpose is unknown.

objectiveTo examine the validity of the ICD-9 code V66.7 for identifying whether hospitalized patients received palliative care consultation.

designRetrospective cohort study. SETTING/SUBJECTS: All patients of age ≥18 years admitted to a single academic medical center between August 2013 and August 2015. MEASUREMENTS: Sensitivity and specificity of the V66.7 code for palliative care consultation for all patients and several a priori identified subgroups. The reference standard was the presence of a palliative care consultation note in the electronic medical record.

resultsOf 100,910 admissions, 1999 received a palliative care consultation (2.0%) and 1846 (1.8%) had usage of the V66.7 code. Sensitivity and specificity for the V66.7 code were 49.9% and 99.1%, respectively. Sensitivity was considerably higher for certain subgroups, such as patients with dementia (76.3%) and metastatic cancer (66.3%); addition of age restrictions further improved sensitivity while maintaining high specificity. Specificity was substantially lower for patients who died during hospitalization (sensitivity 53.9%, specificity 75.1%).

conclusionsIn a single center, the ICD-9 code V66.7 had poor sensitivity and high specificity for identifying hospitalized patients who received a palliative care consultation. Appropriate use of this code for this purpose should take these characteristics into consideration.

Indexed as

Clinical CodingInternational Classification of DiseasesAcademic Medical CentersAdolescentAdultAgedAged, 80 and overElectronic Health RecordsFemaleHumansInpatientsMaleMiddle AgedPalliative CareReferral and ConsultationRetrospective Studiesend-of-life careInternational Classification of Disease Codespalliative medicinevalidation studies

Identifiers

PMID27925839
PMCPMC5385421
OpenAlexW2560017202

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.