Chiasms in Leviticus 15

There are at least 2 nested chiasms in Leviticus 15. The first encompasses almost the entire chapter from verse 2 through 33.

• V2-15 - Abnormal male discharge
• V16-17 - Normal male discharge 
• V18 – If a man lies with a woman
• V19-24 - Normal female discharge
• V25-33 - Abnormal female discharge

The second centers on the sexual discharge of a man in verses 2 through 15:

• V2 – Man with an issue
• V2b-4 – Primary transmission to inanimate objects
• V5-10 – Secondary transmission from objects to people
• V11-Primary transmission to people
• V12-15 – Resolution of uncleanness

The focus of both chiasmi seems to be the intersection of two things which cause the transmission of uncleanness from one to the other.