UCUM units of measure -- all codes Value set

Canonical	../ValueSet/all-ucum
Status	draft · 1.26.0
Source	FSH · JSON

UCUM (the Unified Code for Units of Measure) -- the code system FHIR uses for units on Quantity, and the system this specification's quantities carry: observation values, medication strengths and durations.

UCUM is unusual among the systems here in that it is a grammar rather than a list. Codes are composed from base units and prefixes according to a specification (mg, mg/dL, mm[Hg], 10*6/uL), so the set of valid codes is infinite and no enumeration of it exists or could. A consumer validates a UCUM code by parsing it, not by looking it up.

Published by the Regenstrief Institute and the UCUM Organization. The specification, the tables and the terms of use are at https://ucum.org.

The canonical URI is http://unitsofmeasure.org.

The set enumerates no codes of its own. It includes the whole system, so it means every code in it, and it exists so the system URI resolves to a definition rather than to nothing. The definition itself stays with the publisher at the canonical above: this specification does not redefine the system and does not restrict it. Where this page shows a list of codes, that list is a SAMPLE reproduced under the publisher's own terms and is not the set's content -- the page says how many of how many it is showing.

Codes from http://unitsofmeasure.org

All codes from this system. 500 of 2,232 are shown below as a sample; this page is not the code system.

Sampled from version 2.2.

Attribution required by the publisher

The UCUM codes, UCUM table (regardless of format) and UCUM Specification are copyright 1999+ Regenstrief Institute, Inc. and the Unified Codes for Units of Measures (UCUM) Organization. All rights reserved. See https://ucum.org for terms of use.

Code	Display
'	'
[Amb'a'1'U]	Amb a 1 U
[AU]	AU
[bf_i]	[bf_i]
[Btu_IT]	BtuIT
[bu_us]	[bu_us]
[car_m]	ctm
[ch_us]	[ch_us]
[cml_i]	circ.mil
[cyd_i]	cu.yd
[degRe]	°Ré
[dqt_us]	[dqt_us]
[dye'U]	[dye'U]
[EU]	[EU]
[FFU]	FFU
[foz_us]	oz fl
[fth_i]	fth
[G]	G
[gil_us]	[gil_us]
[hd_i]	hd
[hp_X]	X
[hp'_X]	X
[in_i'Hg]	in Hg
[iU]	IU
[kn_i]	knot
[kp_Q]	Q
[lbf_av]	lbf
[lk_br]	[lk_br]
[lton_av]	[lton_av]
[mclg'U]	[mclg'U]
[mi_i]	mi
[min_us]	[min_us]
[nmi_i]	n.mi
[oz_tr]	[oz_tr]
[pca]	[pca]
[pk_br]	[pk_br]
[PNU]	PNU
[pptr]	pptr
[pt_us]	[pt_us]
[rd_br]	[rd_br]
[sc_ap]	[sc_ap]
[smgy'U]	[smgy'U]
[ston_av]	[ston_av]
[tbs_m]	[tbs_m]
[tsp_us]	[tsp_us]
[yd_br]	[yd_br]
10*	10
a_g	ag
a[eps_0]	aε 0
a[iU]	aIU
a[m_p]	am p
aB	aB
aB[uV]	aB(μV)
aBd	aBd
aC	aC
acal_IT	acalIT
aCel	a°C
aeV	aeV
ag%	ag%
aH	aH
akat	akat
aLmb	aL
am[Hg]	am Hg
aNp	aNp
aosm	aosm
ar	a
aREM	aREM
ast	ast
aT	aT
aU	aU
aWb	aWb
B[kW]	B(kW)
B[W]	B(W)
bit	bit
c[c]	cc
c[G]	cG
c[ly]	cl.y.
cA	cA
cal_m	calm
cB[10.nV]	cB(10 nV)
cB[V]	cB(V)
cBi	cBi
ccal	ccal
ccal_m	ccalm
cCi	cCi
cerg	cerg
cG	cGs
cGy	cGy
circ	circ
cl	cl
clx	clx
cmol	cmol
cOe	cOe
cpc	cpc
cRAD	cRAD
csr	csr
ct	ct
cV	cV
d[c]	dc
d[G]	dG
d[ly]	dl.y.
dA	dA
da[G]	daG
da[k]	dak
daA	daA
daB[kW]	daB(kW)
daB[W]	daB(W)
dabit	dabit
dacal_[15]	dacal15°C
dacal_th	dacalth
daeq	daeq
dag	dag
daGb	daGb
daJ	daJ
dal	dal
dam	dam
damol	damol
daOhm	daΩ
dapc	dapc
daRAD	daRAD
dasb	dasb
dat	dat
daU	daU
dB[10.nV]	dB(10 nV)
dB[uV]	dB(μV)
dBi	dBi
dC	dC
dcal_IT	dcalIT
dCi	dCi
derg	derg
dg%	dg%
dGy	dGy
dkat	dkat
dlm	dlm
dm[Hg]	dm Hg
dN	dN
dP	dP
dR	dR
dS	dS
dSt	dSt
dtex	dtex
dWb	dWb
E[eps_0]	Eε 0
E[IU]	Ei.U.
E[m_p]	Em p
EB[10.nV]	EB(10 nV)
EB[uV]	EB(μV)
EBi	EBi
EC	EC
Ecal_m	Ecalm
ECi	ECi
EF	EF
EGal	EGal
EH	EH
EKy	EK
ELmb	EL
Emho	Emho
ENp	ENp
EPa	EPa
ER	ER
Es	Es
Est	Est
Etex	Etex
EV	EV
f[e]	fe
f[h]	fh
f[m_e]	fm e
far	fa
fB[mV]	fB(mV)
fbar	fbar
fBq	fBq
fcal_[20]	fcal20°C
fcd	fcd
ferg	ferg
fG	fGs
fGy	fGy
fK	fK
flm	flm
fm[H2O]	fm H 2 O
fN	fN
fosm	fosm
fph	fph
fs	fs
fst	fst
ftex	ftex
fW	fW
G[e]	Ge
G[h]	Gh
G[m_e]	Gm e
GA	GA
GB[10.nV]	GB(10 nV)
GB[uV]	GB(μV)
GBi	GBi
GC	GC
Gcal_m	Gcalm
GCi	GCi
GeV	GeV
Gg%	Gg%
GGy	GGy
Gkat	Gkat
Glm	Glm
Gm[Hg]	Gm Hg
GN	GN
Gosm	Gosm
Gph	Gph
Gs	Gs
Gst	Gst
Gtex	Gtex
GW	GW
H	H
h[G]	hG
h[k]	hk
hA	hA
hB[kW]	hB(kW)
hB[W]	hB(W)
hbit	hbit
hcal_[15]	hcal15°C
hcal_th	hcalth
heq	heq
hg	hg
hgf	hgf
hJ	hJ
hL	hL
hm	hm
hmol	hmol
hOhm	hΩ
hpc	hpc
hREM	hREM
hsr	hsr
hT	hT
hV	hV
K	K
k[g]	kgn
k[k]	kk
k[mu_0]	kμ 0
kB[10.nV]	kB(10 nV)
kB[uV]	kB(μV)
kBd	kBd
kC	kC
kcal_IT	kcalIT
kCi	kCi
keV	keV
kGal	kGal
kH	kH
kKy	kK
kLmb	kL
kmho	kmho
kNp	kNp
kPa	kPa
krad	krad
ksb	ksb
kSv	kSv
ku	ku
Ky	K
Lmb	L
m[e]	me
m[g]	mgn
M[h]	Mh
m[IU]	mi.U.
m[ly]	ml.y.
m[m_p]	mm p
MA	MA
MB	MB
mB[mV]	mB(mV)
mB[uV]	mB(μV)
mB[W]	mB(W)
MBd	MBd
Mbit	Mbit
mC	mC
mcal_[15]	mcal15°C
Mcal_IT	McalIT
Mcal_th	Mcalth
mCi	mCi
meq	meq
MeV	MeV
mG	mGs
mGal	mGal
mgf	mgf
mH	mH
min	min
MK	MK
ml	ml
mlm	mlm
Mlx	Mlx
Mm[H2O]	Mm H 2 O
mmol	mmol
mN	mN
mo_g	mog
MOe	MOe
Mosm	Mosm
MPa	MPa
mR	mR
Mrad	Mrad
ms	ms
Msb	Msb
mSt	mSt
mt	mt
mtex	mtex
MU	MU
MW	MW
n[c]	nc
n[G]	nG
n[ly]	nl.y.
nA	nA
nB[mV]	nB(mV)
nB[W]	nB(W)
nbit	nbit
ncal_[15]	ncal15°C
ncal_th	ncalth
neq	neq
ng	ng
ngf	ngf
nJ	nJ
nL	nL
nm	nm
nMx	nMx
nOhm	nΩ
npc	npc
nRAD	nRAD
nsr	nsr
nt	nt
nU	nU
Ohm	Ω
P[c]	Pc
p[g]	pgn
p[h]	ph
P[IU]	Pi.U.
P[ly]	Pl.y.
p[mu_0]	pμ 0
PA	PA
pB[10.nV]	pB(10 nV)
pB[mV]	pB(mV)
PB[uV]	PB(μV)
PB[W]	PB(W)
PBd	PBd
pBq	pBq
pc	pc
pcal_[15]	pcal15°C
pcal_IT	pcalIT
Pcal_th	Pcalth
PCel	P°C
peq	peq
peV	peV
pG	pGs
Pg%	Pg%
pgf	pgf
ph	ph
pJ	pJ
pkat	pkat
pl	pl
Plm	Plm
Plx	Plx
pm[Hg]	pm Hg
pmol	pmol
PN	PN
POe	POe
pP	pP
ppc	ppc
PR	PR
PRAD	PRAD
Ps	Ps
psr	psr
Pst	Pst
pT	pT
Ptex	Ptex
pV	pV
pWb	pWb
REM	REM
sph	sph
t	t
T[eps_0]	Tε 0
T[IU]	Ti.U.
T[m_p]	Tm p
TB[10.nV]	TB(10 nV)
TB[uV]	TB(μV)
TBi	TBi
TC	TC
Tcal_IT	TcalIT
TCi	TCi
TeV	TeV
Tg%	Tg%
TGy	TGy
Tkat	Tkat
Tlm	Tlm
Tm[Hg]	Tm Hg
TN	TN
TP	TP
TR	TR
TS	TS
TSt	TSt
Ttex	Ttex
TWb	TWb
u[e]	μe
u[iU]	μIU
u[m_e]	μm e
uB	μB
uB[SPL]	μB(SPL)
uBd	μBd
uBy	μB
ucal_IT	μcalIT
uCel	μ°C
ueV	μeV
ug%	μg%
uGy	μGy
ukat	μkat
ulm	μlm
um[Hg]	μm Hg
uN	μN
uP	μP
uR	μR
uS	μS
uSt	μSt
uu	μu
uWb	μWb
y[c]	yc
y[eps_0]	yε 0
Y[G]	YG
y[IU]	yi.U.
Y[k]	Yk
y[m_p]	ym p
yA	yA
YB	YB
YB[kW]	YB(kW)
yB[uV]	yB(μV)
yB[W]	yB(W)
YBd	YBd
Ybit	Ybit
yC	yC
ycal_[15]	ycal15°C
Ycal_IT	YcalIT
Ycal_th	Ycalth
YCel	Y°C
yeq	yeq
yeV	yeV
yG	yGs
Yg%	Yg%
ygf	ygf
yH	yH
YJ	YJ
Ykat	Ykat
Yl	Yl
yLmb	yL
Ym	Ym
Ym[Hg]	Ym Hg
yMx	yMx
yNp	yNp
yOhm	yΩ
YP	YP
Ypc	Ypc
yrad	yrad
yREM	yREM
YS	YS
Ysr	Ysr
ySv	ySv
Yt	Yt
yU	yU
YV	YV
z[c]	zc
z[eps_0]	zε 0
Z[g]	Zgn
z[IU]	zi.U.
Z[k]	Zk
z[m_p]	zm p
zA	zA
ZB	ZB
ZB[kW]	ZB(kW)
zB[uV]	zB(μV)
zB[W]	zB(W)
ZBd	ZBd
Zbit	Zbit
zC	zC
zcal_[15]	zcal15°C
Zcal_IT	ZcalIT
Zcal_th	Zcalth
ZCel	Z°C
zeq	zeq
zeV	zeV
zG	zGs
Zg%	Zg%
zgf	zgf
zH	zH
ZJ	ZJ
Zkat	Zkat
Zl	Zl
zLmb	zL
Zm	Zm
Zm[Hg]	Zm Hg
Zmol	Zmol
zNp	zNp
zOhm	zΩ
ZP	ZP
Zpc	Zpc
zrad	zrad
zREM	zREM
ZS	ZS
Zsr	Zsr
zSv	zSv
Zt	Zt
zU	zU
ZV	ZV

End of sample. 500 of 2,232 codes are listed above; the remaining 1,732 are not shown. This page is a sample of the code system, not the code system -- obtain the full set from its publisher.