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National Cancer Data Base - Data Dictionary PUF 2015

Charlson/Deyo Score

DD_category: 
PUF Data Item Name: 
CDCC_TOTAL
Diagnosis Years Available: 
2003+
length: 
1
Allowable values: 
0 - 2
Description: 
Comorbid conditions as described by Charlson/Deyo (1992) are mapped from as many as ten reported ICD-9-CM secondary diagnosis codes reported for cases diagnosed January 1, 2003 and later. The Charlson/Deyo value is a weighted score derived from the sum of the scores for each of the comorbid conditions listed in the Charlson Comorbidity Score Mapping Table. The range for this value is between 0 and 25.
Analytic Note: 

Because of the small proportion of cases with a Charlson Comorbidity score exceeding 2, the data have been truncated to 0, 1, 2 (greater than 1). A score of 0 indicates "no comorbid conditions recorded", or none of the values shown below. Patients with a score of 0 could still have comorbidities if they are conditions that are not included in the mapping table below. Note that the patient's cancer is not directly reflected in the recorded score.

Two examples illustrating how the Charlson Score is summarized for the PUF data: If a patient had a myocardial infarction, diabetes, and renal disease, the cumulative score would be 4, and the value shown in the PUF would be 2. If a patient had severe liver disease, the value in the PUF would also be 2, since the Charlson Score of severe liver disease is 3.

Code Definition
0 Charlson Score of 0 or none of the conditions from the Score Mapping table (below)
1 Total Charlson score of 1
2 Total Charlson Score of 2 or more



Charlson Comorbidity Score Mapping Table:

Reported ICD-9 CM Codes Condition Charlson Score*
410 – 410.9 Myocardial Infarction 1
428 – 428.9 Congestive Heart Failure 1
443.9, 441 – 441.9, 785.4, V43.4 Peripheral Vascular Disease 1
430 – 438 Cerebrovascular Disease 1
290 – 290.9 Dementia 1
490 – 496, 500 – 505, 506.4 Chronic Pulmonary Disease 1
710.0, 710.1, 710.4, 714.0 – 714.2, 714.81, 725 Rheumatologic Disease 1
531 – 534.9 Peptic Ulcer Disease 1
571.2, 571.5, 571.6, 571.4 – 571.49 Mild Liver Disease 1
250 – 250.3, 250.7 Diabetes 1
250.4 – 250.6 Diabetes with Chronic Complications 2
344.1, 342 – 342.9 Hemiplegia or Paraplegia 2
582 – 582.9, 583 – 583.7, 585, 586, 588 – 588.9 Renal Disease 2
572.2 – 572.8 Moderate or Severe Liver Disease 3
042 – 044.9 AIDS 6


*Individual Charlson scores are not provided in the PUF. Instead, the Charlson scores are summed for each patient and categorized by a value of 0, 1, and 2 or more.