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:

2010-02-28 Preliminary Proposal to Encode the Pau Cin Hau Script in ISO/IEC 10646 — Anshuman Pandey ( WG2 N3781,  L2/10-080)

2010-07-26 Allocating the Pau Cin Hau Scripts in the Unicode Roadmap — Anshuman Pandey ( WG2 N3865,  L2/10-073)

2010-10-27 Introducing the Logographic Script of Pau Cin Hau — Anshuman Pandey ( WG2 N3961,  L2/10-438)

2013-04-15 Preliminary Code Chart for the Pau Cin Hau Syllabary — Anshuman Pandey ( WG2 N4412,  L2/13-067)

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)