NHSE Subsegment / Condition Definitions

A national data-driven approach to population segmentation has been developed to support Population Health Management (PHM) outlined in the NHS Long Term Plan. The subsegment and condition definitions in this section provide further detail on the business rules that have been applied to the data sources.

Read more about the background to segmentation, which includes how the project and the Segmentation Dataset output is delivered as part of this initiative.

Learning Disability

Segment: Disability

Subsegment Description

All people with a learning disability diagnosis, including Down’s syndrome.

Data Definition

All people with a learning disability, as defined above, recorded during:

  • a hospital admission (recorded either as the reason for admission or as a co-morbidity),
  • an outpatient appointment,
  • a referral to community services for their learning disability care,
  • a specialist inpatient admission, or
  • a mental health services appointment or admission, including for ‘Improving Access to Psychological Therapies’ services

Number of Clinical Codes Used

  • 12 ICD-10 diagnosis codes

Data Sources Used

Diagram showing that the datasets SUS (APC & OP), Mental Health Data (Inc IAPT), Community Data, Assuring Transformation Data, and National Diabetes Audit Data are used in the Learning Disability subsegment.

For more information about each of the data sources click here

Physical Disability

Segment: Disability

Subsegment Description

All people with a disability diagnosis where physical function is affected. This includes:

  • Neurological conditions such as Huntington’s disease
  • Congenital conditions such as cerebral palsy
  • Conditions that affect gait, such as ataxic gait
  • Injuries that cause musculoskeletal damage
  • Amputations
  • Severe visual or hearing impairment

Data Definition

  • All people with a physical disability, as defined above, recorded during:
  • a hospital admission (recorded either as the reason for admission or as a co-morbidity , or a relevant procedure is recorded such as an amputation),
  • an outpatient appointment,
  • a referral to community services for their congenital condition cerebral palsy care, or an attendance at a musculoskeletal disability or hearing specialist service

Number of Clinical Codes Used

  • 94 ICD-10 diagnosis codes
  • 6 OPCS procedure codes
  • 5 Service Line codes

Data Sources Used

Diagram showing that the datasets SUS (APC & OP), Community Data, and SLAM Data, are used in the Physical Disability subsegment.

For more information about each of the data sources click here