Dozens of people took to the road outside the Valley's only children's hospital at high-security Sonawar area, blocking the highway in protest against the death and shouting slogans against the hospital administration, officials said.
Traffic was briefly suspended for some time, but was restored after the protesting mob dispersed after intervention by police, officials said.
Over 1,400 children deaths have been reported in the hospital since January last year.
In May, authorities had removed Medical Superintendent of the hospital Javed Choudhary over the deaths, besides ordering a probe into the matter.