# The 15 conditions with no evidence-based home

> **Settled 2026-09-12 — nothing here needs deciding any more.** The taxonomy
> rebuild gave every condition a single home, so none of these fifteen is
> duplicated across systems now and `merge_duplicate_conditions` reports zero
> names needing a human call. Chlamydial Infection came back as Chlamydia
> Infection under Adolescent Medicine; the other fourteen kept their names. The
> table below is left as the record of the decision that was never needed.


Every other duplicated condition name had a clear plurality — one system held
most of its questions — and 99 were merged into it, keeping a cross-link to the
systems folded away so no filter narrows.

These fifteen are split evenly. There is no fact in the data that picks a
winner, so nothing was merged: an arbitrary rule would be a decision disguised
as a computation.

**How to decide:** pick the system a learner would look under first. The others
are kept as cross-links either way, so the question still appears when filtering
by them — the choice only sets where the condition *lives* in the tree.

| Condition | Questions | Tied between |
|---|---|---|
| Feeding Difficulty | 30 | Neonatology · Gastroenterology & Nutrition |
| Breastfeeding Jaundice | 16 | Neonatology · Gastroenterology & Nutrition |
| Chlamydial Infection | 16 | Ophthalmology · Infectious Disease · Neonatology |
| Chorioamnionitis | 14 | Infectious Disease · Adolescent Medicine · Neonatology |
| Duodenal Atresia | 8 | Gastroenterology & Nutrition · Neonatology |
| Chemical Burn | 8 | Toxicology · Emergency Medicine |
| Contact Dermatitis | 8 | Dermatology · Allergy/Immunology |
| Respiratory Infection | 8 | Pulmonology · Infectious Disease |
| Gastritis | 6 | Primary Care & Prevention · Gastroenterology & Nutrition |
| Organophosphate Poisoning | 6 | Toxicology · Emergency Medicine |
| Pesticide Toxicity | 6 | Toxicology · Emergency Medicine |
| Orchitis | 6 | Nephrology & Urology · Infectious Disease |
| Neuroblastoma | 6 | Hematology-Oncology · Gastroenterology & Nutrition |
| Epididymitis | 6 | Nephrology & Urology · Infectious Disease |
| Holoprosencephaly | 6 | Genetics & Metabolism · Neonatology |

Some of these look decidable to a clinician even though the counts are level —
Organophosphate Poisoning and Pesticide Toxicity are the same call twice, and
Orchitis and Epididymitis are a pair. Answer those together.

Once chosen, the merge is `scripts/merge_duplicate_conditions.py`, which keeps
the row you name and folds the rest into it.