ICD-10-CM Codes
I00-I99
I26-I28
I27-
2023 ICD-10-CM Diagnosis Code I27.20

2023 ICD-10-CM Diagnosis Code I27.20

Pulmonary hypertension, unspecified

2018 - New Code

2019

2020

2021

2022

2023

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 2023 edition of ICD-10-CM I27.20 became effective on October 1, 2022.
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
2023 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
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 v40.0):

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
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): 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
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
- pulmonary - see also Disease, lung
  - hypertensive (vascular) I27.20 - see also Hypertension, pulmonary
Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
ICD-10-CM Diagnosis Code I10
Essential (primary) hypertension
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-)
- pulmonary I27.20

ICD-10-CM Codes Adjacent To I27.20

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

I26.93 Single subsegmental pulmonary embolism without acute cor pulmonale

I26.94 Multiple subsegmental pulmonary emboli 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.

2023 ICD-10-CM Diagnosis Code I27.20

Pulmonary hypertension, unspecified

Diseases of the circulatory system

Other secondary pulmonary hypertension

Primary pulmonary hypertension

Essential (primary) hypertension