MANAS-ICD11: A Clinically Grounded Benchmark Corpus for Mental Health Disorder Classification
Dataset Description
MANAS-ICD11 is a clinically annotated, ICD-11 aligned benchmark corpus for multi-class mental health disorder classification from Reddit social media posts. The name Manas derives from the Sanskrit word for mind, reflecting the dataset's psychiatric orientation.
The corpus comprises 3,005 Reddit posts spanning five diagnostic categories aligned with the International Classification of Diseases, 11th Revision (ICD-11), annotated exclusively by three qualified medical professionals — one board-certified psychiatrist and two clinical psychologists.
Key Features
- ✅ 3,005 Reddit posts collected from 13 disorder-specific subreddits
- ✅ 5 ICD-11 aligned diagnostic categories
- ✅ Expert annotated — 1 psychiatrist + 2 clinical psychologists
- ✅ Three-task annotation — keywords, clinical characteristics, diagnostic label
- ✅ Strong inter-annotator agreement — Krippendorff's Alpha = 0.80
- ✅ Majority voting gold-standard labels
- ✅ Stratified 80/20 train-test split
Diagnostic Categories (ICD-11 Aligned)
| Category | Train | Test | Total |
|---|---|---|---|
| Anxiety and Fear-Related Disorders | 790 | 198 | 988 |
| Mood Disorders | 532 | 133 | 665 |
| Obsessive-Compulsive and Related Disorders (OCRD) | 512 | 128 | 640 |
| Disorders Specifically Associated with Stress | 436 | 109 | 545 |
| Other | 134 | 33 | 167 |
| Total | 2,404 | 601 | 3,005 |
Data Collection
Posts were collected programmatically using PRAW (Python Reddit API Wrapper) from 13 subreddits:
r/depression, r/anxiety, r/BipolarReddit, r/OCD, r/PTSD, r/ADHD, r/autism, r/EatingDisorders, r/DID, r/Phobia, r/PanicAttack, r/socialanxiety, r/mentalhealth
Collection window: January 2019 – December 2024
Annotation Process
Each post was independently reviewed by all three medical experts, who were required to:
- Identify clinically relevant keywords in the post
- Document clinical characteristics supporting their diagnosis
- Assign a final ICD-11 aligned diagnostic label
Final labels were resolved through majority voting (agreement of at least 2 out of 3 annotators).
Access
This dataset is available under gated access for academic and non-commercial research purposes.
To request access, please agree to the ethical usage guidelines. The dataset must not be used to identify or re-identify individuals.
Ethical Considerations
- All data collected via official PRAW API in compliance with Reddit's Terms of Service
- All author usernames and personally identifiable metadata removed prior to annotation
- No attempt made to re-identify or link posts to real-world individuals
- Sensitive mental health disclosures handled with strict confidentiality
License
This dataset is licensed under Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0). Use is permitted for academic and non-commercial research only.
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