White Blood Cell Count and Differential, Blood

Test Code

WBCD

Alias/See Also

WBC with Differential, WBC with Diff

CPT Codes
85048

Preferred Specimen

Draw blood in a lavender-top (EDTA) tube, and send 3 mL (minimum
volume: 1 mL) of blood.

Note: White blood cell (WBC) count and
differential parameters are only stable for up to 12 hours.

Transport Temperature

Ambient

Methodology
Sysmex XE-5000

Setup Schedule

Monday through Sunday

Reference Range

TEST	UNITS	AGE	MALE	FEMALE
WBC	K/µl	0-14 days	8.04-15.40	8.16-14.56
		15-30 days	7.8-15.91	8.36-14.42
		31-60 days	8.14-14.99	7.05-14.68
		61-180 days	6.51-13.32	6.00-13.25
		6 months-<2 yrs	5.98-13.51	6.48-13.02
		2-9 yrs	4.0-12.0	4.0-12.0
		9-17 yrs	4.0-10.5	4.0-10.5
		17-127 yrs	5.0-10.0	5.0-10.0		Absolute counts
					UNITS	AGE	MALE	FEMALE
POLYS	%	0-14 days	20-39	21-46	X1000/uL	0-14 days	1.6-6.06	1.73-6.75
		15-30 days	15-34	15-33		15-30 days	1.18-5.45	1.23-4.80
		31-60 days	10.0-28	14-32		31-60 days	0.83-4.23	1.0-4.68
		61-180 days	15-41	17-54		61-180 days	0.97-5.45	1.04-7.2
		6 months-<2 yrs	20-53	20-55		6 months-<2 yrs	1.19-7.21	1.27-7.18
		2-9 yrs	35-71	35-71		2-9 yrs	1.40-8.52	1.40-8.52
		9-17 yrs	40-77	40-77		9-17 yrs	1.60-8.08	1.60-8.08
		17-127 yrs	50-70	50-70		17-127 yrs	2.5-7.0	2.5-7.0
LYNPHS	%	0-14 days	20-39	21-46	X1000/uL	0-14 days	2.07-7.53	1.75-8.00
		15-30 days	15-34	15-33		15-30 days	2.11-8.38	2.42-8.20
		31-60 days	10.0-28	14-32		31-60 days	2.47-7.95	2.29-9.14
		61-180 days	15-41	17-54		61-180 days	2.45-8.89	2.14-8.99
		6 months-<2 yrs	20-53	20-55		6 months-<2 yrs	1.56-7.83	1.52-8.09
		2-9 yrs	35-71	35-71		2-9 yrs	0.60-6.24	0.60-6.24
		9-17 yrs	40-77	40-77		9-17 yrs	0.52-5.04	0.52-5.04
		17-127 yrs	50-70	50-70		17-127 yrs	1.0-4.0	1.0-4.0
MONOS	%	0-14 days	20-39	21-46	X1000/uL	0-14 days	0.52-1.77	0.57-1.72
		15-30 days	15-34	15-33		15-30 days	0.28-1.38	0.42-1.21
		31-60 days	10.0-28	14-32		31-60 days	0.28-1.05	0.28-1.21
		61-180 days	15-41	17-54		61-180 days	0.28-1.07	0.24-1.17
		6 months-<2 yrs	20-53	20-55		6 months-<2 yrs	0.25-1.15	0.26-1.08
		2-9 yrs	35-71	35-71		2-9 yrs	0.08-1.68	0.08-1.68
		9-17 yrs	40-77	40-77		9-17 yrs	0.08-1.26	0.08-1.26
		17-127 yrs	50-70	50-70		17-127 yrs	0.10-0.80	0.10-0.80
EOS	%	0-14 days	1.5-4.3	1.1-4.4	X1000/uL	0-14 days	0.12-0.66	0.09-0.64
		15-30 days	1.0-5.0	0.7-5.2		15-30 days	0.08-0.80	0.06-0.75
		31-60 days	0.6-3.8	0.6-4.3		31-60 days	0.05-0.57	0.04-0.63
		61-180 days	0.5-4.6	0.3-5.6		61-180 days	0.03-0.61	0.02-0.74
		6 months-<2 yrs	0.3-6.1	0.3-4.5		6 months-<2 yrs	0.02-0.82	0.02-0.58
		2-9 yrs	0-6	0-6		2-9 yrs	0-0.72	0-0.72
		9-17 yrs	0.5	0.5		9-17 yrs	0-0.53	0-0.53
		17-127 yrs	0-3	0-3		17-127 yrs	1-0.30	1-0.30
BASO	%	0-14 days	0.2-0.7	0.3-0.5	X1000/uL	0-14 days	0.02-0.11	0.02-0.07
		15-30 days	0.1-0.4	0.1-0.4		15-30 days	0.01-0.07	0.01-0.06
		31-60 days	0.1-0.5	0.1-0.5		31-60 days	0.01-0.07	0.01-0.05
		61-180 days	0.2-0.5	0.2-0.5		61-180 days	0.01-0.06	0.01-0.07
		6 months-<2 yrs	0.2-0.5	0.2-0.5		6 months-<2 yrs	0.01-0.06	0.01-0.06
		2-9 yrs	0-1	0-1		2-9 yrs	0-0.12	0-0.12
		9-17 yrs	0-1	0-1		9-17 yrs	0-0.11	0-0.11
		17-127 yrs	0-1	0-1		17-127 yrs	0-0.1	0-0.1
META	%	0-1 month	0-1	0-1	X1000/uL	0-1 month	0-0.17	0-0.17
		>1 month	0	0		1 month-2 yrs	0-0.07	0-0.07
						2-9 yrs	0-0.06	0-0.06
						9-17 yrs	0-0.05	0-0.05
						17-127 yrs	0-0.05	0-0.05
NRBC	#/100 WBC	0-1 month	0-6	0-6
		>1 month	0	0

WBC Critical values

Newborns (0-28 days): ‰¤5.0 K/µL or ‰¥40.0 K/µL

Pediatrics (29 days-12 years): ‰¤3.5 K/µL or ‰¥40.0 K/µL

Pre-Op patients (‰¥13 years): <2.0 K/µL or >35.0 K/µL

All others (‰¥13 years): <2.0 K/µL or >35.0 K/µL

Performed By
North Mississippi Medical Center Pathology Department

Performing Laboratory
NMMC Pathology Department

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.