- I27.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM I27.21 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I27.21 – other international versions of ICD-10 I27.21 may differ.
ICD-10-CM I27.21 is grouped within Diagnostic Related Group(s):
- 314 Other circulatory system diagnoses with mcc
- 315 Other circulatory system diagnoses with cc
- 316 Other circulatory system diagnoses without cc/mcc
Applicable To
- (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
- (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
Code History
- 2018 (effective 10/1/2017): New code
- 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
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to I27.21:
- arterial (associated) (drug-induced) (toxin-induced) > pulmonary I27.20
- group 1 (associated) (drug-induced) (toxin-induced) > pulmonary I27.20
- secondary > pulmonary I27.20
- arterial > secondary I27.21