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Supporting Information
Provides information to help users understand content in the NHS Data Model and Dictionary. In addition you can also find the COVID-19 Population Risk Assessment Code List and General Practice Data for Planning and Research (GPDPR).
COVID-19 Population Risk Assessment
NHS Digital has used QCovid® to develop the COVID-19 Population Risk Assessment.
Bone Marrow
Bone marrow or stem cell transplant in past 6 months.

Bone Marrow

Bone marrow or stem cell transplant in past 6 months.

Table 1. Bone Marrow
Condition group	Dataset	Coding system	Code value	Code description
has_bone_marrow_last_6_months	HES	OPCS	X336	Allogeneic peripheral blood stem cell transplant
has_bone_marrow_last_6_months	HES	OPCS	W341	Autograft of bone marrow
has_bone_marrow_last_6_months	HES	OPCS	X334	Autologous peripheral blood stem cell transplant
has_bone_marrow_last_6_months	HES	OPCS	W34	Graft of bone marrow