Revision History for the MP/H Coding Rules Manual
September 27, 2011
| Data Item | NAACCR Item # | MPH Page | Revision |
| Multiplicity Counter | 446 | 339 | Added codes 00 and 89, effective for 1/1/2011 diagnoses and forward |
October 14, 2010
| Data Item | NAACCR Item # | MPH Page | Revision |
| Ambiguous Terminology | 442 | 335 | Reference to 2010 Hematopoietic Database and Manual added |
| Date of Conclusive Terminology | 443 | 338a | Instructions for transmitting dates revised Instructions for estimating dates added |
| Date of Conclusive Diagnosis Flag | 448 | 338d | New data item |
| Multiplicity Counter | 446 | 339 | Instructions expanded and examples added Instructions for code 99 revised to include tumors described as “disseminated” |
| Date of Multiple Tumors | 445 | 341a | Instructions expanded and examples added Instructions for transmitting dates revised Instructions for estimating dates added |
| Date of Multiple Tumors Flag | 439 | 341e | New data item |
| Type of Multiple Tumors Reported as One Primary | 444 | 342 | Instructions for code 99 revised to include tumors described as “disseminated” and “diffuse” |
