The Pau Cin Hau Syllabary is not yet in Unicode. The script was previously called the Pau Cin Hau Logographs. The script has a tentative allocation at U+19E00..U+1A2FF in the Roadmap to the SMP for the Unicode Standard.
A number of background documents for its inclusion have been submitted to the Unicode Technical Committee and WG2:
2016-01-06 Revised code chart for the Pau Cin Hau Syllabary — Anshuman Pandey ( L2/16-014)
UTC #146 Minutes ( L2/16-004) (See D.13 for decision and action items)