2017/18 ICD-10-CM Diagnosis Code I27.21

Secondary pulmonary arterial hypertension

Applicable To
  • (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
  • (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
Code Also
Code Also Help
A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
  • associated conditions if applicable, or adverse effects of drugs or toxins, such as:
  • adverse effect of appetite depressants (
    ICD-10-CM Diagnosis Code T50.5X5

    Adverse effect of appetite depressants

      2016 2017 2018 Non-Billable/Non-Specific Code
    T50.5X5
    )
  • congenital heart disease (Q20-Q28
    ICD-10-CM Range Q20-Q28

    Congenital malformations of the circulatory system

    • Q20 Congenital malformations of cardiac cham...
    • Q21 Congenital malformations of cardiac sept...
    • Q22 Congenital malformations of pulmonary an...
    • Q23 Congenital malformations of aortic and m...
    • Q24 Other congenital malformations of heart
    • Q25 Congenital malformations of great arteri...
    • Q26 Congenital malformations of great veins
    • Q27 Other congenital malformations of periph...
    • Q28 Other congenital malformations of circul...
    )
  • human immunodeficiency virus [HIV] disease (
    ICD-10-CM Diagnosis Code B20

    Human immunodeficiency virus [HIV] disease

      2016 2017 2018 Billable/Specific Code
    Code First
    • Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-)
    Includes
    • acquired immune deficiency syndrome [AIDS]
    • AIDS-related complex [ARC]
    • HIV infection, symptomatic
    Type 1 Excludes
    • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
    • exposure to HIV virus (Z20.6)
    • inconclusive serologic evidence of HIV (R75)
    Use Additional
    • code(s) to identify all manifestations of HIV infection
    B20
    )
  • polymyositis (
    ICD-10-CM Diagnosis Code M33.2

    Polymyositis

      2016 2017 2018 Non-Billable/Non-Specific Code
    M33.2-
    )
  • portal hypertension (
    ICD-10-CM Diagnosis Code K76.6

    Portal hypertension

      2016 2017 2018 Billable/Specific Code
    Use Additional
    • code for any associated complications, such as:
    • portal hypertensive gastropathy (K31.89)
    K76.6
    )
  • rheumatoid arthritis (
    ICD-10-CM Diagnosis Code M05
    • M05 Rheumatoid arthritis with rheumatoid factor
      • M05.0 Felty's syndrome
        • M05.00 …… unspecified site
        • M05.01 Felty's syndrome, shoulder
          • M05.011 Felty's syndrome, right shoulder
          • M05.012 Felty's syndrome, left shoulder
          • M05.019 Felty's syndrome, unspecified shoulder
        • M05.02 Felty's syndrome, elbow
          • M05.021 Felty's syndrome, right elbow
          • M05.022 Felty's syndrome, left elbow
          • M05.029 Felty's syndrome, unspecified elbow
        • M05.03 Felty's syndrome, wrist
          • M05.031 Felty's syndrome, right wrist
          • M05.032 Felty's syndrome, left wrist
          • M05.039 Felty's syndrome, unspecified wrist
        • M05.04 Felty's syndrome, hand
          • M05.041 Felty's syndrome, right hand
          • M05.042 Felty's syndrome, left hand
          • M05.049 Felty's syndrome, unspecified hand
        • M05.05 Felty's syndrome, hip
          • M05.051 Felty's syndrome, right hip
          • M05.052 Felty's syndrome, left hip
          • M05.059 Felty's syndrome, unspecified hip
        • M05.06 Felty's syndrome, knee
          • M05.061 Felty's syndrome, right knee
          • M05.062 Felty's syndrome, left knee
          • M05.069 Felty's syndrome, unspecified knee
        • M05.07 Felty's syndrome, ankle and foot
          • M05.071 Felty's syndrome, right ankle and foot
          • M05.072 Felty's syndrome, left ankle and foot
          • M05.079 Felty's syndrome, unspecified ankle and foot
        • M05.09 …… multiple sites
      • M05.1 Rheumatoid lung disease with rheumatoid arthr...
        • M05.10 Rheumatoid lung disease with rheumatoid arthr...
        • M05.11 Rheumatoid lung disease with rheumatoid arthr...
          • M05.111 Rheumatoid lung disease with rheumatoid arthr...
          • M05.112 Rheumatoid lung disease with rheumatoid arthr...
          • M05.119 Rheumatoid lung disease with rheumatoid arthr...
        • M05.12 Rheumatoid lung disease with rheumatoid arthr...
          • M05.121 Rheumatoid lung disease with rheumatoid arthr...
          • M05.122 Rheumatoid lung disease with rheumatoid arthr...
          • M05.129 Rheumatoid lung disease with rheumatoid arthr...
        • M05.13 Rheumatoid lung disease with rheumatoid arthr...
          • M05.131 Rheumatoid lung disease with rheumatoid arthr...
          • M05.132 Rheumatoid lung disease with rheumatoid arthr...
          • M05.139 Rheumatoid lung disease with rheumatoid arthr...
        • M05.14 Rheumatoid lung disease with rheumatoid arthr...
          • M05.141 Rheumatoid lung disease with rheumatoid arthr...
          • M05.142 Rheumatoid lung disease with rheumatoid arthr...
          • M05.149 Rheumatoid lung disease with rheumatoid arthr...
        • M05.15 Rheumatoid lung disease with rheumatoid arthr...
          • M05.151 Rheumatoid lung disease with rheumatoid arthr...
          • M05.152 Rheumatoid lung disease with rheumatoid arthr...
          • M05.159 Rheumatoid lung disease with rheumatoid arthr...
        • M05.16 Rheumatoid lung disease with rheumatoid arthr...
          • M05.161 Rheumatoid lung disease with rheumatoid arthr...
          • M05.162 Rheumatoid lung disease with rheumatoid arthr...
          • M05.169 Rheumatoid lung disease with rheumatoid arthr...
        • M05.17 Rheumatoid lung disease with rheumatoid arthr...
          • M05.171 Rheumatoid lung disease with rheumatoid arthr...
          • M05.172 Rheumatoid lung disease with rheumatoid arthr...
          • M05.179 Rheumatoid lung disease with rheumatoid arthr...
        • M05.19 Rheumatoid lung disease with rheumatoid arthr...
      • M05.2 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.20 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.21 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.211 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.212 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.219 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.22 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.221 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.222 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.229 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.23 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.231 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.232 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.239 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.24 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.241 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.242 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.249 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.25 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.251 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.252 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.259 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.26 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.261 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.262 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.269 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.27 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.271 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.272 Rheumatoid vasculitis with rheumatoid arthrit...
          • M05.279 Rheumatoid vasculitis with rheumatoid arthrit...
        • M05.29 Rheumatoid vasculitis with rheumatoid arthrit...
      • M05.3 Rheumatoid heart disease with rheumatoid arth...
        • M05.30 Rheumatoid heart disease with rheumatoid arth...
        • M05.31 Rheumatoid heart disease with rheumatoid arth...
          • M05.311 Rheumatoid heart disease with rheumatoid arth...
          • M05.312 Rheumatoid heart disease with rheumatoid arth...
          • M05.319 Rheumatoid heart disease with rheumatoid arth...
        • M05.32 Rheumatoid heart disease with rheumatoid arth...
          • M05.321 Rheumatoid heart disease with rheumatoid arth...
          • M05.322 Rheumatoid heart disease with rheumatoid arth...
          • M05.329 Rheumatoid heart disease with rheumatoid arth...
        • M05.33 Rheumatoid heart disease with rheumatoid arth...
          • M05.331 Rheumatoid heart disease with rheumatoid arth...
          • M05.332 Rheumatoid heart disease with rheumatoid arth...
          • M05.339 Rheumatoid heart disease with rheumatoid arth...
        • M05.34 Rheumatoid heart disease with rheumatoid arth...
          • M05.341 Rheumatoid heart disease with rheumatoid arth...
          • M05.342 Rheumatoid heart disease with rheumatoid arth...
          • M05.349 Rheumatoid heart disease with rheumatoid arth...
        • M05.35 Rheumatoid heart disease with rheumatoid arth...
          • M05.351 Rheumatoid heart disease with rheumatoid arth...
          • M05.352 Rheumatoid heart disease with rheumatoid arth...
          • M05.359 Rheumatoid heart disease with rheumatoid arth...
        • M05.36 Rheumatoid heart disease with rheumatoid arth...
          • M05.361 Rheumatoid heart disease with rheumatoid arth...
          • M05.362 Rheumatoid heart disease with rheumatoid arth...
          • M05.369 Rheumatoid heart disease with rheumatoid arth...
        • M05.37 Rheumatoid heart disease with rheumatoid arth...
          • M05.371 Rheumatoid heart disease with rheumatoid arth...
          • M05.372 Rheumatoid heart disease with rheumatoid arth...
          • M05.379 Rheumatoid heart disease with rheumatoid arth...
        • M05.39 Rheumatoid heart disease with rheumatoid arth...
      • M05.4 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.40 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.41 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.411 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.412 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.419 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.42 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.421 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.422 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.429 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.43 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.431 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.432 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.439 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.44 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.441 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.442 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.449 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.45 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.451 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.452 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.459 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.46 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.461 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.462 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.469 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.47 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.471 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.472 Rheumatoid myopathy with rheumatoid arthritis...
          • M05.479 Rheumatoid myopathy with rheumatoid arthritis...
        • M05.49 Rheumatoid myopathy with rheumatoid arthritis...
      • M05.5 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.50 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.51 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.511 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.512 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.519 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.52 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.521 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.522 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.529 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.53 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.531 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.532 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.539 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.54 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.541 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.542 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.549 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.55 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.551 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.552 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.559 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.56 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.561 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.562 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.569 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.57 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.571 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.572 Rheumatoid polyneuropathy with rheumatoid art...
          • M05.579 Rheumatoid polyneuropathy with rheumatoid art...
        • M05.59 Rheumatoid polyneuropathy with rheumatoid art...
      • M05.6 Rheumatoid arthritis with involvement of othe...
        • M05.60 Rheumatoid arthritis of unspecified site with...
        • M05.61 Rheumatoid arthritis of shoulder with involve...
          • M05.611 Rheumatoid arthritis of right shoulder with i...
          • M05.612 Rheumatoid arthritis of left shoulder with in...
          • M05.619 Rheumatoid arthritis of unspecified shoulder ...
        • M05.62 Rheumatoid arthritis of elbow with involvemen...
          • M05.621 Rheumatoid arthritis of right elbow with invo...
          • M05.622 Rheumatoid arthritis of left elbow with invol...
          • M05.629 Rheumatoid arthritis of unspecified elbow wit...
        • M05.63 Rheumatoid arthritis of wrist with involvemen...
          • M05.631 Rheumatoid arthritis of right wrist with invo...
          • M05.632 Rheumatoid arthritis of left wrist with invol...
          • M05.639 Rheumatoid arthritis of unspecified wrist wit...
        • M05.64 Rheumatoid arthritis of hand with involvement...
          • M05.641 Rheumatoid arthritis of right hand with invol...
          • M05.642 Rheumatoid arthritis of left hand with involv...
          • M05.649 Rheumatoid arthritis of unspecified hand with...
        • M05.65 Rheumatoid arthritis of hip with involvement ...
          • M05.651 Rheumatoid arthritis of right hip with involv...
          • M05.652 Rheumatoid arthritis of left hip with involve...
          • M05.659 Rheumatoid arthritis of unspecified hip with ...
        • M05.66 Rheumatoid arthritis of knee with involvement...
          • M05.661 Rheumatoid arthritis of right knee with invol...
          • M05.662 Rheumatoid arthritis of left knee with involv...
          • M05.669 Rheumatoid arthritis of unspecified knee with...
        • M05.67 Rheumatoid arthritis of ankle and foot with i...
          • M05.671 Rheumatoid arthritis of right ankle and foot ...
          • M05.672 Rheumatoid arthritis of left ankle and foot w...
          • M05.679 Rheumatoid arthritis of unspecified ankle and...
        • M05.69 Rheumatoid arthritis of multiple sites with i...
      • M05.7 Rheumatoid arthritis with rheumatoid factor w...
        • M05.70 Rheumatoid arthritis with rheumatoid factor o...
        • M05.71 Rheumatoid arthritis with rheumatoid factor o...
          • M05.711 Rheumatoid arthritis with rheumatoid factor o...
          • M05.712 Rheumatoid arthritis with rheumatoid factor o...
          • M05.719 Rheumatoid arthritis with rheumatoid factor o...
        • M05.72 Rheumatoid arthritis with rheumatoid factor o...
          • M05.721 Rheumatoid arthritis with rheumatoid factor o...
          • M05.722 Rheumatoid arthritis with rheumatoid factor o...
          • M05.729 Rheumatoid arthritis with rheumatoid factor o...
        • M05.73 Rheumatoid arthritis with rheumatoid factor o...
          • M05.731 Rheumatoid arthritis with rheumatoid factor o...
          • M05.732 Rheumatoid arthritis with rheumatoid factor o...
          • M05.739 Rheumatoid arthritis with rheumatoid factor o...
        • M05.74 Rheumatoid arthritis with rheumatoid factor o...
          • M05.741 Rheumatoid arthritis with rheumatoid factor o...
          • M05.742 Rheumatoid arthritis with rheumatoid factor o...
          • M05.749 Rheumatoid arthritis with rheumatoid factor o...
        • M05.75 Rheumatoid arthritis with rheumatoid factor o...
          • M05.751 Rheumatoid arthritis with rheumatoid factor o...
          • M05.752 Rheumatoid arthritis with rheumatoid factor o...
          • M05.759 Rheumatoid arthritis with rheumatoid factor o...
        • M05.76 Rheumatoid arthritis with rheumatoid factor o...
          • M05.761 Rheumatoid arthritis with rheumatoid factor o...
          • M05.762 Rheumatoid arthritis with rheumatoid factor o...
          • M05.769 Rheumatoid arthritis with rheumatoid factor o...
        • M05.77 Rheumatoid arthritis with rheumatoid factor o...
          • M05.771 Rheumatoid arthritis with rheumatoid factor o...
          • M05.772 Rheumatoid arthritis with rheumatoid factor o...
          • M05.779 Rheumatoid arthritis with rheumatoid factor o...
        • M05.79 Rheumatoid arthritis with rheumatoid factor o...
      • M05.8 Other rheumatoid arthritis with rheumatoid fa...
        • M05.80 Other rheumatoid arthritis with rheumatoid fa...
        • M05.81 Other rheumatoid arthritis with rheumatoid fa...
          • M05.811 Other rheumatoid arthritis with rheumatoid fa...
          • M05.812 Other rheumatoid arthritis with rheumatoid fa...
          • M05.819 Other rheumatoid arthritis with rheumatoid fa...
        • M05.82 Other rheumatoid arthritis with rheumatoid fa...
          • M05.821 Other rheumatoid arthritis with rheumatoid fa...
          • M05.822 Other rheumatoid arthritis with rheumatoid fa...
          • M05.829 Other rheumatoid arthritis with rheumatoid fa...
        • M05.83 Other rheumatoid arthritis with rheumatoid fa...
          • M05.831 Other rheumatoid arthritis with rheumatoid fa...
          • M05.832 Other rheumatoid arthritis with rheumatoid fa...
          • M05.839 Other rheumatoid arthritis with rheumatoid fa...
        • M05.84 Other rheumatoid arthritis with rheumatoid fa...
          • M05.841 Other rheumatoid arthritis with rheumatoid fa...
          • M05.842 Other rheumatoid arthritis with rheumatoid fa...
          • M05.849 Other rheumatoid arthritis with rheumatoid fa...
        • M05.85 Other rheumatoid arthritis with rheumatoid fa...
          • M05.851 Other rheumatoid arthritis with rheumatoid fa...
          • M05.852 Other rheumatoid arthritis with rheumatoid fa...
          • M05.859 Other rheumatoid arthritis with rheumatoid fa...
        • M05.86 Other rheumatoid arthritis with rheumatoid fa...
          • M05.861 Other rheumatoid arthritis with rheumatoid fa...
          • M05.862 Other rheumatoid arthritis with rheumatoid fa...
          • M05.869 Other rheumatoid arthritis with rheumatoid fa...
        • M05.87 Other rheumatoid arthritis with rheumatoid fa...
          • M05.871 Other rheumatoid arthritis with rheumatoid fa...
          • M05.872 Other rheumatoid arthritis with rheumatoid fa...
          • M05.879 Other rheumatoid arthritis with rheumatoid fa...
        • M05.89 Other rheumatoid arthritis with rheumatoid fa...
      • M05.9 Rheumatoid arthritis with rheumatoid factor, ...
    M05.-
    )
  • schistosomiasis (
    ICD-10-CM Diagnosis Code B65
    • B65 Schistosomiasis [bilharziasis]
      • B65.0 Schistosomiasis due to Schistosoma haematobiu...
      • B65.1 Schistosomiasis due to Schistosoma mansoni [i...
      • B65.2 Schistosomiasis due to Schistosoma japonicum
      • B65.3 Cercarial dermatitis
      • B65.8 Other schistosomiasis
      • B65.9 Schistosomiasis, unspecified
    B65.-
    )
  • Sjögren syndrome (
    ICD-10-CM Diagnosis Code M35.0

    Sicca syndrome [Sjögren]

      2016 2017 2018 Non-Billable/Non-Specific Code
    M35.0-
    )
  • systemic sclerosis (
    ICD-10-CM Diagnosis Code M34
    • M34 Systemic sclerosis [scleroderma]
      • M34.0 Progressive systemic sclerosis
      • M34.1 CR(E)ST syndrome
      • M34.2 Systemic sclerosis induced by drug and chemic...
      • 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
    M34.-
    )
The following code(s) above I27.21 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 I27.21:
  • I00-I99
    2018 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 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 I27.21 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert I27.21 to ICD-9-CM

Code History
Code annotations containing back-references to I27.21:

Diagnosis Index entries containing back-references to I27.21:

ICD-10-CM Codes Adjacent To I27.21
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
I27.9 Pulmonary heart disease, unspecified

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