content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
  <submissionType>144</submissionType>
  <filerInfo>
  <filer>
  <filerCredentials>
  <cik>0001697361</cik>
  <ccc>XXXXXXXX</ccc>
  </filerCredentials>
  </filer>
  <liveTestFlag>LIVE</liveTestFlag>
  
  
  
  </filerInfo>
  </headerData>
  <formData>
  <issuerInfo>
  <issuerCik>0001439725</issuerCik>
  <issuerName>BIODESIX INC</issuerName>
  <secFileNumber>001-39659</secFileNumber>
  <issuerAddress>
  <com:street1>919 WEST DILLON RD</com:street1>
  <com:city>LOUISVILLE</com:city>
  <com:stateOrCountry>CO</com:stateOrCountry>
  <com:zipCode>80027</com:zipCode>
  </issuerAddress>
  <issuerContactPhone>303-417-0500</issuerContactPhone>
  <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Hutton Scott</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
  <relationshipsToIssuer>
  <relationshipToIssuer>Officer</relationshipToIssuer>
  <relationshipToIssuer>Director</relationshipToIssuer>
  </relationshipsToIssuer>
  </issuerInfo>
  <securitiesInformation>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <brokerOrMarketmakerDetails>
  <name>Morgan Stanley Smith Barney LLC</name>
  <address>
  <com:street1>1 New York Plaza</com:street1>
  <com:street2>38th Floor</com:street2>
  <com:city>New York</com:city>
  <com:stateOrCountry>NY</com:stateOrCountry>
  <com:zipCode>10004</com:zipCode>
  </address>
  </brokerOrMarketmakerDetails>
  <noOfUnitsSold>3764</noOfUnitsSold>
  <aggregateMarketValue>5834.2</aggregateMarketValue>
  <noOfUnitsOutstanding>114685783</noOfUnitsOutstanding>
  <approxSaleDate>05/09/2024</approxSaleDate>
  <securitiesExchangeName>NASDAQ</securitiesExchangeName>
  </securitiesInformation>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>05/08/2024</acquiredDate>
  <natureOfAcquisitionTransaction>Settlement of vested RSUs issued under an S-8 Registered Plan</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>12212</amountOfSecuritiesAcquired>
  <paymentDate>05/08/2024</paymentDate>
  <natureOfPayment>Equity compensation for services rendered</natureOfPayment>
  </securitiesToBeSold>
  <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>Scott Hutton</name>
  <address>
  <com:street1>919 WEST DILLON RD</com:street1>
  <com:city>LOUISVILLE</com:city>
  <com:stateOrCountry>CO</com:stateOrCountry>
  <com:zipCode>80027</com:zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <saleDate>02/12/2024</saleDate>
  <amountOfSecuritiesSold>29560</amountOfSecuritiesSold>
  <grossProceeds>49208.53</grossProceeds>
  </securitiesSoldInPast3Months>
  <remarks>Shares sold automatically to cover taxes upon the vesting of RSUs</remarks>
  <noticeSignature>
  <noticeDate>05/09/2024</noticeDate>
  <signature>/s/ Scott Hutton</signature>
  </noticeSignature>
  </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3067}]
text: 144
  0001697361
  XXXXXXXX
  LIVE
  0001439725
  BIODESIX INC
  001-39659
  919 WEST DILLON RD
  LOUISVILLE
  CO
  80027
  303-417-0500
  Hutton Scott
  Officer
  Director
  Common Stock
  Morgan Stanley Smith Barney LLC
  1 New York Plaza
  38th Floor
  New York
  NY
  10004
  3764
  5834.2
  114685783
  05/09/2024
  NASDAQ
  Common Stock
  05/08/2024
  Settlement of vested RSUs issued under an S-8 Registered Plan
  Issuer
  N
  12212
  05/08/2024
  Equity compensation for services rendered
  N
  Scott Hutton
  919 WEST DILLON RD
  LOUISVILLE
  CO
  80027
  Common Stock
  02/12/2024
  29560
  49208.53
  Shares sold automatically to cover taxes upon the vesting of RSUs
  05/09/2024
  /s/ Scott Hutton