2019 ICD-10-CM Diagnosis Code I27.20

Pulmonary hypertension, unspecified

    2018 - New Code 2019 Billable/Specific Code
  • I27.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM I27.20 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of I27.20 - other international versions of ICD-10 I27.20 may differ.
Applicable To
  • Pulmonary hypertension NOS
The following code(s) above I27.20 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I27.20:
  • I00-I99
    2019 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I27.2
    ICD-10-CM Diagnosis Code I27.2

    Other secondary pulmonary hypertension

      2016 2017 2018 - Deleted Code 2018 - New Code 2019 Non-Billable/Non-Specific Code
    Code Also
    • associated underlying condition
    Type 1 Excludes
    • Eisenmenger's syndrome (I27.83)
    Other secondary pulmonary hypertension
ICD-10-CM I27.20 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 314 Other circulatory system diagnoses with mcc
  • 315 Other circulatory system diagnoses with cc
  • 316 Other circulatory system diagnoses without cc/mcc

Convert I27.20 to ICD-9-CM

Code History
  • 2018 (effective 10/1/2017): New code
  • 2019 (effective 10/1/2018): No change
Code annotations containing back-references to I27.20:
  • Type 1 Excludes: I27.0
    ICD-10-CM Diagnosis Code I27.0

    Primary pulmonary hypertension

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Heritable pulmonary arterial hypertension
    • Idiopathic pulmonary arterial hypertension
    • Primary group 1 pulmonary hypertension
    • Primary pulmonary arterial hypertension
    Type 1 Excludes
    • persistent pulmonary hypertension of newborn (P29.30)
    • pulmonary hypertension NOS (I27.20)
    • secondary pulmonary arterial hypertension (I27.21)
    • secondary pulmonary hypertension (I27.29)

Diagnosis Index entries containing back-references to I27.20:
  • Disease, diseased - see also Syndrome
  • Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
    ICD-10-CM Diagnosis Code I10

    Essential (primary) hypertension

      2016 2017 2018 2019 Billable/Specific Code Questionable As Admission Dx
    Includes
    • high blood pressure
    • hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)
    Type 1 Excludes
    • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
    Type 2 Excludes
    • essential (primary) hypertension involving vessels of brain (I60-I69)
    • essential (primary) hypertension involving vessels of eye (H35.0-)

ICD-10-CM Codes Adjacent To I27.20
I26.02 Saddle embolus of pulmonary artery with acute cor pulmonale
I26.09 Other pulmonary embolism with acute cor pulmonale
I26.9 Pulmonary embolism without acute cor pulmonale
I26.90 Septic pulmonary embolism without acute cor pulmonale
I26.92 Saddle embolus of pulmonary artery without acute cor pulmonale
I26.99 Other pulmonary embolism without acute cor pulmonale
I27 Other pulmonary heart diseases
I27.0 Primary pulmonary hypertension
I27.1 Kyphoscoliotic heart disease
I27.2 Other secondary pulmonary hypertension
I27.20 Pulmonary hypertension, unspecified
I27.21 Secondary pulmonary arterial hypertension
I27.22 Pulmonary hypertension due to left heart disease
I27.23 Pulmonary hypertension due to lung diseases and hypoxia
I27.24 Chronic thromboembolic pulmonary hypertension
I27.29 Other secondary pulmonary hypertension
I27.8 Other specified pulmonary heart diseases
I27.81 Cor pulmonale (chronic)
I27.82 Chronic pulmonary embolism
I27.83 Eisenmenger's syndrome
I27.89 Other specified pulmonary heart diseases

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.