ArticleArchives of dermatological research2023
Assessment of the validity of international classification of disease tenth revision codes for atopic dermatitis.
Article in Archives of dermatological research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Bidirectional association between atopic dermatitis and attention deficit hyperactivity disorder: a systematic review and meta-analysis.Annals of medicine · 2025Pooled it
- Association between atopic dermatitis and febrile seizure in young children.BMC pediatrics · 2026Article
- The Association Between Atopic Dermatitis and Select Disease Events in Adults in the United States: A Retrospective Cohort Study in the Optum Electronic Health Records Database.Dermatology and therapy · 2025Article
- A Scalable Approach to Assess the Safety of Recently Marketed Systemic Treatments for Atopic Dermatitis in Clinical Practice: First Analysis Cycle of a Sequential Monitoring System.The Journal of investigative dermatology · 2025Article
- Association between parental autoimmune disease and childhood atopic dermatitis varied by sex: a nationwide case-control study.Archives of dermatological research · 2023Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Little is known about the validity of ICD-10-CM codes for atopic dermatitis (AD) in healthcare claims databases. We assessed the validity of ICD-10-CM codes for identifying adult patients with AD. The healthcare claims database from a large metropolitan tertiary care medical center was queried for diagnostic codes of L20.x and L30.9. Medical records were reviewed for demographics, comorbidities, Hanifin & Rajka (H-R), and United Kingdom Working Party (UKWP) criteria. Sensitivity, specificity, and positive predictive values (PPVs) were calculated. Overall, 833 patients were identified with ≥ 1 occurrence of the aforementioned ICD-10 codes for AD. Using H-R and UKWP criteria as the gold-standard definitions of AD, the PPV of any aforementioned L20.x ICD-10 codes was 39.1% and 51.4%, with sensitivity of 98.1% and 97.4%, respectively. The PPV was 25% and 50% for L20.82; 66.7% and 100% for L20.84; 37.5% and 62.5% for L20.89; 60.1% and 51.4% for L20.9, respectively. PPV generally increased when case definitions combined ICD-10 codes with coexistent ICD-10 codes for asthma or hay fever, food allergy, and allergic rhinitis, and to a lesser extent coding of the ICD-10 code for AD by a dermatologist. Among patients with all these criteria, PPV increased to 100% and 80% based on H-R and UKWP criteria, but sensitivity decreased to 83.3% and 80.0%, respectively. In conclusion, ICD-10-CM codes for AD alone had poor PPV for identifying AD in a healthcare claims database. Combined ICD-10 codes for AD and comorbid atopic disease improved PPV and specificity of classification at the expense of sensitivity.
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