Charlson Comorbidity scoring in pre-ICD10 codes: Difference between revisions
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This page explains how the [[Charlson Comorbidity Index]] score is derived for data prior to [[Conversion from our old diagnosis schema to ICD10/CCI]]. | This page explains how the [[Charlson Comorbidity Index]] score is derived for data prior to [[Conversion from our old diagnosis schema to ICD10/CCI]]. See [[Charlson Comorbidity scoring in ICD10 codes]] for the counterpart. | ||
=== Short version === | === Short version === |
Latest revision as of 14:45, 2023 February 2
This page explains how the Charlson Comorbidity Index score is derived for data prior to Conversion from our old diagnosis schema to ICD10/CCI. See Charlson Comorbidity scoring in ICD10 codes for the counterpart.
Short version
To get the Charlson comorbid points for a patient, use query L_ICD10_Charlson_score.
Long version
Points are not included in the listings because the score depends on the combination of diagnoses. For example, if a patient has two diagnoses from the same Charlson component, they are only counted once. Also, if a patient has diagnoses from a lesser and more severe component of the same type (e.g. Diabetes without and with complications), only the higher one counts.
- S_charlson_dxs table - the subset of S_AllDiagnoses table that would contribute to a Charlson score
- query s_como - query to combine S_charlson_dxs table and S_AllDiagnoses table
- query L_ICD10_Charlson_dxs - to list only those dxs from L_ICD10 table that contribute to the Charlson score
- query L_ICD10_Charlson_component_points - to derive the max score per component
- query L_ICD10_Charlson_score - to sum up the scores
This is then used by query Charlson_Score_pre_and_ICD10 to provide continuous Charlson Comorbidity Index scoring.
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