Excludes: fever of unknown origin (during)(in):
.labour(O75.2)
.newborn(P81.9)
puerperal pyrexia NOS (O86.4)
R50.0
Fever with chills
Fever with rigors
R50.1
Persistent fever
R50.9
Fever, unspecified
Hyperpyrexia NOS
Pyrexia NOS
Excludes: malignant hyperthermia due to anaesthesia (T88.3)