Title: 2021 ICD-10-CM Diagnosis Code M34.1: CR (E)ST syndrome
Headings: 
2021 ICD-10-CM Diagnosis Code M34.1
CR (E)ST syndrome

Content: New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
Diagnosis Index entries containing back-references to M34.1: Calcinosis (interstitial) (tumoral) (universalis) E83.59
ICD-10-CM Diagnosis Code E83.59
Other disorders of calcium metabolism
2016 2017 2018 2019 2020 2021 Billable/Specific Code
with Raynaud's phenomenon, esophageal dysfunction, sclerodactyly, telangiectasia M34.1 (CREST syndrome)
CREST syndrome M34.1
CRST syndrome M34.1
ICD-10-CM Codes Adjacent To M34.1
M33.22 …… with myopathy
M33.29 …… with other organ involvement
M33.9 Dermatopolymyositis, unspecified
M33.90 …… organ involvement unspecified
M33.91 …… with respiratory involvement
M33.92 …… with myopathy
M33.93 …… without myopathy
M33.99 …… with other organ involvement
M34 Systemic sclerosis [scleroderma]
M34.0 Progressive systemic sclerosis
M34.1 CR (E)ST syndrome
M34.2 Systemic sclerosis induced by drug and chemical
M34.8 Other forms of systemic sclerosis
M34.81 Systemic sclerosis with lung involvement
M34.82 Systemic sclerosis with myopathy
M34.83 Systemic sclerosis with polyneuropathy
M34.89 Other systemic sclerosis
M34.9 Systemic sclerosis, unspecified
M35 Other systemic involvement of connective tissue
M35.0 Sicca syndrome [Sjögren]
M35.00 Sicca syndrome, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.