O86.4 is the ICD-10 code for Pyrexia of unknown origin following delivery. It is a four-character subcategory of O86 (Other puerperal infections), the most specific level in the WHO edition. It belongs to the block O85–O92 (Complications predominantly related to the puerperium) in Chapter XV, Pregnancy, childbirth and the puerperium.
- Code type
- Subcategory (4 characters)
- Chapter
- XV · O00–O99
- Classification
- WHO ICD-10, 2019 version
What O86.4 includes
Conditions and terms that are coded here.
- Puerperal:
- infection NOS
- pyrexia NOS
What O86.4 excludes
Conditions that look similar but belong under another code.
O86.4 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
O86.4Pyreksi av ukjent årsak etter forløsning
DO864Feber i barselsperiode uden kendt årsag
O86.4Tuntemattomasta syystä aiheutunut synnytyksen jälkeinen kuume
O86.4Fieber unbekannten Ursprungs nach Entbindung
O86.4Hyperthermie d'origine inconnue, après accouchement
O86.4pyrexie van onbekende oorsprong na bevalling
O86.4Pyrexia of unknown origin following delivery
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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