The number was down from 270 new cases reported in the capital the previous day.
It normally takes about three days for the results of polymerase chain reaction tests to be confirmed and compiled by the Tokyo metropolitan government.
Of the new infections confirmed on Sept. 27, 36 patients were in their 20s, 32 were in their 30s, 20 were in their 40s, and 18 were in their 50s. In addition, 14 were in their 60s, 10 were in their 70s, one was eighty something, and three were in their 90s. Among younger new patients, six were teenagers, and four were under the age of 10.
Twenty-nine patients, the same number as on Sept. 26, were classified as having severe symptoms that require the use of a ventilator or an extra corporeal membrane oxygenation (ECMO) device, which circulates blood through an artificial lung.