The February 8 massacre of Red Cross workers was part of a campaign to defame Afghanistan, officials say.
A government commission has been set up to investigate the disputed facts and how the militants were able to carry out the attack.
The 'Islamic State of Iraq and the Levant' is facing a steep decline in revenue, which is devastating the morale of its fighters.
The militants massing in northern Afghanistan represent a stew of nationalities and groups.
Two interns were involved in last week's 'simultaneous massacre' on Sardar Daud Khan Hospital that left more than 100 dead, multiple survivors said.
The 'Islamic State of Iraq and the Levant' (ISIL) was stopped in its tracks when the Afghan people realised the group's ideology is un-Islamic and incompatible with Afghan culture.
Militants have no respect for civilians, and women in particular experience their cruelty daily, observers say.
The militants dressed up as doctors and shot up patients, doctors and nurses during a six-hour ordeal that ended when special forces killed them.
Attacks by the militant group rob the country of its youth, kill innocents, and erode the economic potential of all Afghans.
The series of success against the 'Islamic State of Iraq and the Levant' is part of Operation Shaheen 25, a campaign to rid the province of the militant group.