AutoICD API

I27.21

Billable

Secondary pulmonary arterial hypertension

Secondary pulmonary arterial hypertension

Status

Billable / Specific

Block

I26-I28

Parent Code

I27.2

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
  • (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • Eisenmenger's syndrome (I27.83)

Excludes 2

Conditions not included here, but the patient may have both

  • 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.-)

Code Also

A second code may be required; sequencing depends on circumstances

  • associated underlying condition
  • associated conditions if applicable, or adverse effects of drugs or toxins, such as:
  • adverse effect of appetite depressants (T50.5X5)
  • congenital heart disease (Q20-Q28)
  • human immunodeficiency virus [HIV] disease (B20)
  • polymyositis (M33.2-)
  • portal hypertension (K76.6)
  • rheumatoid arthritis (M05.-)
  • schistosomiasis (B65.-)
  • Sjögren syndrome (M35.0-)
  • systemic sclerosis (M34.-)

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is the ICD-10 code for secondary pulmonary arterial hypertension?

The ICD-10-CM code for secondary pulmonary arterial hypertension is I27.21. The full clinical description is "Secondary pulmonary arterial hypertension". I27.21 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code I27.21 mean?

ICD-10-CM code I27.21 represents "Secondary pulmonary arterial hypertension". It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.

Is I27.21 a billable code?

Yes, I27.21 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is I27.21 in?

I27.21 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).

What codes cannot be used with I27.21?

I27.21 has Excludes1 notes indicating codes that cannot be used together with it, including: Eisenmenger's syndrome (I27.83).

What SNOMED CT codes does I27.21 map to?

I27.21 maps to 15 SNOMED CT concepts: 697902002, 233945002, 697904001, 697908003, 697905000, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for I27.21?

I27.21 is linked to 3 UMLS Concept Unique Identifiers: C4509210, C4509209, C3665995. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.