RT Book, Section A1 Shamus, Eric A1 Stern, Debra Feingold SR Print(0) ID 55667761 T1 Appendix D. ICD-9 Code Terms T2 Effective Documentation for Physical Therapy Professionals, 2e YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-166404-2 LK accessphysiotherapy.mhmedical.com/content.aspx?aid=55667761 RD 2023/11/29 AB ICD-9 Codes That Support Medical Necessity (not an inclusive list) for billing purposes, the following diagnoses usually describe an acute event or a complex medical condition that is generally considered acceptable.