A man was seen helping Maradona stay on his feet as he was led away from his seat overlooking the pitch and into an adjacent room in the video posted by Fernando Schwartz, a well-known sports journalist in Mexico.
A photograph also posted on Twitter appeared to show two medical staff attending to Maradona.
The Argentine website of sports broadcaster ESPN said Maradona was taken to hospital but newspaper La Nacion said he was treated for low blood pressure in the stadium and was able to leave the stadium normally shortly afterwards.
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Earlier, Maradona appeared overcome with emotion at the final whistle of the match, which saw Argentina win 2-1 to avoid being dumped out of the World Cup at the group stages.
The 57-year-old, who led Argentina to the 1986 World Cup title, has battled cocaine addiction in the past.
— With a file from Rahul Kalvapalle