WHOCC
Postal address:
WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
Postboks 222 Sk°yen
0213 Oslo
Norway

Visiting/delivery address:
Marcus Thranes gate 6
0473 Oslo
Norway

Tel:  +47 21 07 81 60
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Alterations in ATC/DDD

Overview of ATC/DDD alterations decided at the two previous meetings of the WHO International Working Group for Drug Statistics Methodology. Comments or objections to the ATC/DDD alterations from the latest meeting (temporary codes) should be forwarded to the WHO Collaborating Centre for Drug Statistics Methodology within the deadline. If no objections are received, the alterations will be considered final and included in the ATC/DDD Index. The year of implementation in the ATC/DDD Index is given in the list. 

Please note that all ATC and DDD alterations are valid and implemented annually.

Change of DDDs

ATC codeLevel namePrevious DDDNew DDDDeadline for objection to temporary alterations 1) Implementation in ATC/DDD index
A04AD12aprepitant 2)95 mg P150 mg P01.09.20182019
A04AD12aprepitant95 mg O165 mg O01.09.20182019
H01BA01vasopressin (argipressin)4 U P40 U P01.09.20182019
J01CA01ampicillin2 g P6 g PFinal2019
J01CA04amoxicillin1 g O1.5 g OFinal2019
J01CA04amoxicillin1 g P3 g PFinal2019
J01CA17temocillin2 g P4 g P01.09.20182019
J01CR02amoxicillin and beta-lactamase inhibitor1 g O1.5 g OFinal2019
J01DE01cefepime2 g P4 g PFinal2019
J01DH02meropenem2 g P3 g PFinal2019
J01MA02ciprofloxacin0.5 g P0.8 g PFinal2019
J01XB01colistin3 MU P9 MU PFinal2019
1) Final: indicates that the date for objection has expired
2) expressed as fosaprepitant

Change of ATC level name

Previous nameNew ATC level nameATC codeDeadline for objection to temporary alterations 1) Implementation in ATC/DDD index
dinutuximabdinutuximab betaL01XC16Final2019
Angiotensin II antagonists, plainAngiotensin II receptor blockers (ARBs), plainC09C01.09.20182019
Angiotensin II antagonists, plainAngiotensin II receptor blockers (ARBs), plainC09CA01.09.20182019
Angiotensin II antagonists, combinationsAngiotensin II receptor blockers (ARBs), combinations C09D01.09.20182019
Angiotensin II antagonists and diureticsAngiotensin II receptor blockers (ARBs) and diuretics C09DA01.09.20182019
Angiotensin II antagonists and calcium channel blockersAngiotensin II receptor blockers (ARBs) and calcium channel blockers C09DB01.09.20182019
Angiotensin II antagonists, other combinationsAngiotensin II receptor blockers (ARBs), other combinationsC09DX01.09.20182019
fluoromethylcholine (18F)fluorocholine (18F)V09IX0701.09.20182019
combinationspotassium (different salts in combination)A12BA3001.09.20182019

Change in ATC codes

INN/generic namePrevious ATC codeNew ATC codeDeadline for objection to temporary alterations 1) Implementation in ATC/DDD index
dimethyl fumarateN07XX09L04AX0701.09.20182019

Last updated: 2018-05-16