Creatinine Pretreatment Unit of Measure
Description
Creatinine Pretreatment Unit of Measure identifies the unit of measure for the creatinine value measured in blood or serum prior to treatment. Creatinine is commonly measured in units of Milligrams/deciliter (mg/dL) in the United States and Micromoles/liter (umol/L) in Canada and Europe.
There are two methods of describing creatinine levels in the blood, weight in grams (milligrams per deciliter), usually used in the US, and molecular count in moles (micromoles per liter) in Canada. Conversion: 1 mg/dL = 17.1 mol/L. Code the unit of measure used by the facility laboratory.
There are two related data items that record information on Creatinine.
* 3824: Creatinine Pretreatment Lab Value.
* 3825: Creatinine Pretreatment Unit of Measure
Rationale
Creatinine Pretreatment Unit of Measure identifies the unit of measure for the creatinine value measured in blood or serum prior to treatment. Creatinine is commonly measured in units of Milligrams/deciliter (mg/dL) in the United States and Micromoles/liter (umol/L) in Canada and Europe.
Additional Info
**Source documents:** clinical laboratory report (blood serum); value may be part of a metabolic or liver function panel
**Other names include** Serum creatinine, plasma creatinine (PCr), blood creatinine, Creat, Cre.
* Do not confuse with creatinine clearance or creatine; these are not the same tests. Do not code urine creatinine or creatinine clearance.
**Normal Reference Range**
* Women: 0.5-1.0 mg/dL (45-90 umol/L)
* Men: 0.7-1.2 mg/dL (60-110 umol/L). Male values are usually higher due to greater muscle mass.
* Normal value ranges may vary slightly among different laboratories.
Notes
**Note 1:** **Physician Statement**
* Physician statement of Creatinine Pretreatment Unit of Measure can be used to code this data item when no other information is available.
**Note 2:** **Pretreatment results only**
* Record this data item based on a blood test performed at diagnosis (pre-treatment). Use the highest value available
* Record the blood or serum creatinine value for this data item
* Do not use urine results to code this data item.
**Note 3:** **Measurement definitions**
* There are two main methods of describing concentrations: by weight, and by molecular count.
* Weights are recorded in grams, and molecular counts are recorded in moles.
* Milligrams/deciliter (mg/dL) is the unit of measure commonly used in the United States.
* Micromoles/liter (umol/L) is the designated Systeme International (SI) unit of measure commonly used in Canada and Europe.
• 1 mg/dL of bilirubin is 17.1 umol/L.
**Note 4:** **Related data item**
* The same laboratory test should be used to record information in the related data item data item 3824: Creatinine Pretreatment Lab Value.
Default
8
Metadata
SSDI
| Code |
Description |
| 1 |
Milligrams/deciliter (mg/dL) |
| 2 |
Micromoles/liter (umol/L) |
| 7 |
Test ordered, results not in chart |
| 8 |
Not applicable: Information not collected for this case
(If this item is required by your standard setter, use of code 8 will result in an edit error.) |
| 9 |
Not documented in medical record
Creatinine unit of measure not assessed or unknown if assessed |
