A 2-year-old previously unimmunized girl is brought with poor feeding and fever for 6 days. On day 4 of fever, her mother noticed a maculopapular reddish rash starting from the face and spreading over the neck, chest, arms and trunk over the next one day and she has developed extensive mouth ulcers. The child has a mid-arm circumference of 11 cm but no edema. As per IMNCI, she will be classified as:
Severe complicated measles
The clinical picture (fever, cough/coryza-type prodrome, cephalocaudal spreading maculopapular rash) is classic measles. Per the IMNCI classification table for measles, the presence of deep or extensive mouth ulcers (not just mild ulcers) is one of the specific criteria that automatically classifies the case as severe complicated measles, requiring urgent referral, regardless of the nutritional status finding.