<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-08-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000883984</issuerCik>
        <issuerName>ICU MEDICAL INC/DE</issuerName>
        <issuerTradingSymbol>ICUI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000078003</rptOwnerCik>
            <rptOwnerName>PFIZER INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>235 E 42ND ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001697389</rptOwnerCik>
            <rptOwnerName>C.P. Pharmaceuticals International C.V.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ITS GENERAL PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>235 E. 42ND ST</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001697379</rptOwnerCik>
            <rptOwnerName>Pfizer Production LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>235 EAST 42ND STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001697471</rptOwnerCik>
            <rptOwnerName>Pfizer Manufacturing LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>235 EAST 42ND STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-08-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>700000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>284.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>_</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares are owned directly by C.P. Pharmaceuticals International C.V. (&quot;CPPI&quot;), whose general partners are Pfizer Production LLC (&quot;PPL&quot;) and Pfizer Manufacturing LLC (&quot;PPM&quot;). CPPI, PPL and PPM are indirect wholly-owned subsidiaries of Pfizer Inc. (&quot;Pfizer&quot;). Pfizer, PPL and PPM are indirect beneficial owners of the shares, but each of PPL and PML, as a general partner of CPPI, disclaims ownership of securities held by CPPI except to the extent of any pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Pfizer Inc., By /s/Susan Grant, Asst. Secretary</signatureName>
        <signatureDate>2018-08-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Pfizer Production LLC, acting in its capacity as general partner of C.P. Pharmaceuticals International C.V. By /s/ Brian McMahon, Senior Vice President</signatureName>
        <signatureDate>2018-08-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Pfizer Manufacturing LLC, acting in its capacity as general partner of C.P. Pharmaceuticals International C.V. By /s/ Colum Lane, Senior Vice President</signatureName>
        <signatureDate>2018-08-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Pfizer Production LLC, By /s/Darren Welsh, Secretary</signatureName>
        <signatureDate>2018-08-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Pfizer Manufacturing LLC, By /s/Darren Welsh, Secretary</signatureName>
        <signatureDate>2018-08-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
