Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_18 (code__iata_icao_ VARCHAR, rank VARCHAR)
### Question:
What is the code for rank 10?
### Answer:
SELECT code__iata_icao_ FROM table_name_18 WHERE rank = 10