Charlson Comorbidities in ICD10 codes

Details with Explanation

• The original description by Charlson of what has become the Charlson Comorbidity Index [CCI] (J. Chr. Dis. 40(5):373-383, 1987) was oriented towards identifying the cumulative burden of pre-existing medical conditions for the purpose of taking account of comorbid conditions that might alter mortality in longitudinal research studies. She identified, by manual chart review, a set of 17 conditions to which were applied weights, resulting in a composite "Charlson Score". Furthermore, in her original schema, these weights were modified by age. She found that in a survival analysis of time to death among people with breast cancer, that this comorbidity index was a significant predictor of the hazard of death.
• One might ask whether it's reasonable to include only 17 (or 31 or 100 for that matter) specific disorders in trying to measure the cumulative comorbid burden. After all, there are 16,000 ICD-10 codes and the vast majority of them can be pre-existing conditions. The issue here is that there's clearly a balance here between: (i) being practical in not including too many conditions while still maintaining generalizable results, and (ii) including enough conditions that the resulting measure is still meaningful.
• Despite the original purpose of the CCI, it started being used as a measure of the cumulative burden of comorbid illness in a wide variety of purposes. The next big step was taken by Deyo (J. Clin. Epidemiol. 45(6):613-619, 1992) who in created a set of ICD-9 codes for using administrative health data (hospital abstracts) to calculate the CCI. And this is WITHOUT the age-related portion of the original description by Charlson herself.
• The most recent seminal paper was a modified version of Deyo's coding by Quan (Medical Care 43(11):1130-1139, 2005) who created sets of ICD-9 and ICD-10 codes for CCI (and also, by the way for a different schema by Elixhauser et al for identifying 31 specific comorbid conditions to assess the cumulative burden of comorbid disease).
• In the time since then the CCI has been widely used

• AG you need to put in here what OUR Charlson means and doesn't mean. How we decided, what Charlson orig meant and what Quan assessed...................

This is a list of the ICD10 diagnoses that contribute to the Charlson Comorbidity Index.

Charlson Admit Como - this is part of that discussion AG you need to put in here what OUR Charlson means and doesn't mean. How we decided, what Charlson orig meant and what Quan assessed.

• SMW

• Cargo

• Categories

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.

See Charlson Comorbidity scoring in ICD10 codes for more info.

See #How this page works for info on how these codes are stored on the wiki.

Listing of ICD10 comorbid codes

There are 0 of these:

Semantic annotations

This will appear empty but here is where you would edit the content of the table above. {{wikiline ICD10 Charlson | ICD10 = AIDS (disease due to HIV) | ICD10_Code= B24 | Charlson = AIDS/HIV }}

How this page works

#Listing of ICD10 comorbid codes contains a semantic query that lists the data.

#Semantic annotations contains calls to Template:ICD10 Charlson which populates the semantic data that drive the listing. That part can be populated directly from column "wikiline" of the S ICD10 Charlson Comorbids query.