Impairment · 2005 PDRS Section 2
Blood & hematopoietic: PD rating
Blood-forming system impairment. These arrive directly as a whole-person impairment (WPI) percentage.
WPI → PD rating
Example — a 10% WPI hematopoietic impairment: 10 × 1.4 = 14 standard rating (DOI ≥ 2013), before the occupational and age adjustments.
The occupational and age steps and the final dollar figure depend on the specific job and birth date — the calculator computes them exactly.
How blood-system ratings work: hematopoietic impairment files under 09.01.00.00, rated as whole-person impairment keyed to symptoms, transfusion or medication dependence, and interference with daily activities. The WPI then runs the standard pipeline: the 1.4 adjustment, occupational variant, and age modifier.
Impairments in this system · 1
Hematopoietic rating FAQ
How is a blood & hematopoietic injury rated for permanent disability in California?
These arrive directly as a whole-person impairment (WPI) percentage. The WPI is multiplied by 1.4 to get the standard rating (dates of injury on or after 2013 under SB 863), then adjusted for the worker’s occupation and age, apportioned under Lab. Code §4663, and combined with any other impairments. Example — a 10% WPI hematopoietic impairment: 10 × 1.4 = 14 standard rating (DOI ≥ 2013), before the occupational and age adjustments.
What body parts are in the Blood & hematopoietic section of the PDRS?
The 2005 PDRS lists 1 impairment here. Blood-forming system impairment.
Does the occupation change a blood & hematopoietic rating?
Yes — after the ×1.4 step, the occupational group applies a variant that raises or lowers the standard rating. See the occupation pages for how each group treats this region.
Is this a legal PD rating?
No — it’s an estimate for informational use. Confirm every rating against the DEU. RateString rates strict AMA Guides 5th-edition values under the 2005 PDRS.
Rate this impairment — free
Enter the WPI, occupation, and age — get a defensible PD rating and indemnity in under a minute.