If you have trouble with FTP protocol like I did, They are also available in ZIP files on CMS site -
https://www.cms.gov/Medicare/Coding/ICD10/2017-ICD-10-CM-and-GEMs.html
The only changes in the Z are as follows. Very few deletions mostly additions.
Add: Z050 Observation and evaluation of newborn for suspected cardiac condition ruled out
Add: Z051 Observation and evaluation of newborn for suspected infectious condition ruled out
Add: Z052 Observation and evaluation of newborn for suspected neurological condition ruled out
Add: Z053 Observation and evaluation of newborn for suspected respiratory condition ruled out
Add: Z0541 Observation and evaluation of newborn for suspected genetic condition ruled out
Add: Z0542 Observation and evaluation of newborn for suspected metabolic condition ruled out
Add: Z0543 Observation and evaluation of newborn for suspected immunologic condition ruled out
Add: Z055 Observation and evaluation of newborn for suspected gastrointestinal condition ruled out
Add: Z056 Observation and evaluation of newborn for suspected genitourinary condition ruled out
Add: Z0571 Observation and evaluation of newborn for suspected skin and subcutaneous tissue condition ruled out
Add: Z0572 Observation and evaluation of newborn for suspected musculoskeletal condition ruled out
Add: Z0573 Observation and evaluation of newborn for suspected connective tissue condition ruled out
Add: Z058 Observation and evaluation of newborn for other specified suspected condition ruled out
Add: Z059 Observation and evaluation of newborn for unspecified suspected condition ruled out
Add: Z191 Hormone sensitive malignancy status
Add: Z192 Hormone resistant malignancy status
Delete: Z2250 Carrier of unspecified viral hepatitis
Delete: Z2251 Carrier of viral hepatitis B
Delete: Z2252 Carrier of viral hepatitis C
Delete: Z2259 Carrier of other viral hepatitis
Add: Z2911 Encounter for prophylactic immunotherapy for respiratory syncytial virus (RSV)
Add: Z2912 Encounter for prophylactic antivenin
Add: Z2913 Encounter for prophylactic Rho(D) immune globulin
Add: Z2914 Encounter for prophylactic rabies immune globin
Add: Z293 Encounter for prophylactic fluoride administration
Add: Z298 Encounter for other specified prophylactic measures
Add: Z299 Encounter for prophylactic measures, unspecified
Add: Z30015 Encounter for initial prescription of vaginal ring hormonal contraceptive
Add: Z30016 Encounter for initial prescription of transdermal patch hormonal contraceptive device
Add: Z30017 Encounter for initial prescription of implantable subdermal contraceptive
Add: Z3044 Encounter for surveillance of vaginal ring hormonal contraceptive device
Add: Z3045 Encounter for surveillance of transdermal patch hormonal contraceptive device
Add: Z3046 Encounter for surveillance of implantable subdermal contraceptive
Add: Z317 Encounter for procreative management and counseling for gestational carrier
Add: Z333 Pregnant state, gestational carrier
Add: Z516 Encounter for desensitization to allergens
Add: Z5331 Laparoscopic surgical procedure converted to open procedure
Add: Z5332 Thoracoscopic surgical procedure converted to open procedure
Add: Z5333 Arthroscopic surgical procedure converted to open procedure
Add: Z5339 Other specified procedure converted to open procedure
Add: Z7984 Long term (current) use of oral hypoglycemic drugs
Add: Z8342 Family history of familial hypercholesterolemia
Add: Z8482 Family history of sudden infant death syndrome
Add: Z9284 Personal history of unintended awareness under general anesthesia
Delete: Z9889 Other specified postprocedural states
Add: Z98890 Other specified postprocedural states
Add: Z98891 History of uterine scar from previous surgery
