Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HP40NM_0005909606P40    IL-9    IL9   
HP40BC0662849606P40    IL-9    IL9   
HP40BC0662879606P40    IL-9    IL9   
HP40BC0662839606P40    IL-9    IL9   
HP40BC0662859606P40    IL-9    IL9   
HP40BC0662869606P40    IL-9    IL9   
hp40X175439606

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002