Is there a global HS Code? No. You should know exactly what the specific number in your specific country. But the first 6 digit numbers are supposed the same across the whole world. Each country can modify by adding two digits or four digits as per their requirements without changing first six digits.
BLENHEIM, in Hanover, is a place-name found also in Manchester, and originates from Bavaria, Germany. Blenheim (in Germany) was a site of a great battle, which no doubt led to use of the name in Jamaica.
Jamaica. An island in the Greater Antilles in the West Indies. Its capital is Kingston. It was discovered in 1494 by Columbus and was a Spanish colony 1509-1655 until captured by the English. Its flourishing slave trade was abolished in the 19th century. It was a British colony 1655-1958 and a territory of the West Indies Federation 1958-62.