2020 ICD-10-CM Diagnosis Code E80.20

Unspecified porphyria

    2016 2017 2018 2019 2020 Billable/Specific Code
  • E80.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM E80.20 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of E80.20 - other international versions of ICD-10 E80.20 may differ.
Applicable To
  • Porphyria NOS
The following code(s) above E80.20 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 E80.20:
  • E00-E89
    2020 ICD-10-CM Range E00-E89

    Endocrine, nutritional and metabolic diseases

    Note
    • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
    Type 1 Excludes
    • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
    Endocrine, nutritional and metabolic diseases
  • E70-E88
    2020 ICD-10-CM Range E70-E88

    Metabolic disorders

    Type 1 Excludes
    • androgen insensitivity syndrome (E34.5-)
    • congenital adrenal hyperplasia (E25.0)
    • Ehlers-Danlos syndrome (Q79.6-)
    • hemolytic anemias attributable to enzyme disorders (D55.-)
    • Marfan's syndrome (Q87.4)
    • 5-alpha-reductase deficiency (E29.1)
    Metabolic disorders
  • E80
    ICD-10-CM Diagnosis Code E80

    Disorders of porphyrin and bilirubin metabolism

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • defects of catalase and peroxidase
    Disorders of porphyrin and bilirubin metabolism
Approximate Synonyms
  • Disorder of porphyrin metabolism
  • Porphyria
  • Porphyrin metabolism disorder
  • Porphyrinuria
  • Porphyruria
Clinical Information
  • A disease characterized by the presence of large amounts of porphyrins in the blood and urine
  • A diverse group of metabolic diseases characterized by errors in the biosynthetic pathway of heme in the liver, the bone marrow, or both. They are classified by the deficiency of specific enzymes, the tissue site of enzyme defect, or the clinical features that include neurological (acute) or cutaneous (skin lesions). Porphyrias can be hereditary or acquired as a result of toxicity to the hepatic or erythropoietic marrow tissues.
  • A group of genetic or acquired metabolic disorders characterized by defects in the enzymes that are involved in the heme synthesis.
  • Group of disorders characterized by the excessive production of porphyrins or their precursors that arises from abnormalities in the regulation of the porphyrin-heme pathway; acquired porphyrias, which are due to inhibition of enzymes in the metabolic pathway by a drug, toxin or abnormal metabolite, are more common than those which are inherited.
  • Porphyrias are a group of genetic disorders caused by problems with how your body makes a substance called heme. Heme is found throughout the body, especially in your blood and bone marrow, where it carries oxygen. Porphyrias affect the skin or the nervous system. People with the skin type develop blisters, itching, and swelling of their skin when it is exposed to sunlight. The nervous system type is called acute porphyria. Symptoms include pain in the chest or abdomen, vomiting, and diarrhea or constipation. During an attack, symptoms can include muscle numbness, tingling, paralysis, cramping, and personality or mental changes. Certain triggers can cause an attack, including some medicines, smoking, drinking alcohol, infections, stress and sun exposure. Attacks develop over hours or days. They can last for days or weeks. Porphyria can be hard to diagnose. It requires blood, urine and stool tests. Each type has a different treatment. It usually involves medicine, treatment with heme or drawing blood.
ICD-10-CM E80.20 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 642 Inborn and other disorders of metabolism

Convert E80.20 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to E80.20:
  • Polyneuropathy (peripheral) G62.9
    ICD-10-CM Diagnosis Code G62.9

    Polyneuropathy, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Neuropathy NOS
    • in (due to)
      • porphyria E80.20
  • Porphyria (South African) E80.20
    • due to drugs E80.20
    • acquired E80.20
    • secondary E80.20
    • toxic NEC E80.20
    • variegata E80.20

ICD-10-CM Codes Adjacent To E80.20
E79 Disorders of purine and pyrimidine metabolism
E79.0 Hyperuricemia without signs of inflammatory arthritis and tophaceous disease
E79.1 Lesch-Nyhan syndrome
E79.2 Myoadenylate deaminase deficiency
E79.8 Other disorders of purine and pyrimidine metabolism
E79.9 Disorder of purine and pyrimidine metabolism, unspecified
E80 Disorders of porphyrin and bilirubin metabolism
E80.0 Hereditary erythropoietic porphyria
E80.1 Porphyria cutanea tarda
E80.2 Other and unspecified porphyria
E80.20 Unspecified porphyria
E80.21 Acute intermittent (hepatic) porphyria
E80.29 Other porphyria
E80.3 Defects of catalase and peroxidase
E80.4 Gilbert syndrome
E80.5 Crigler-Najjar syndrome
E80.6 Other disorders of bilirubin metabolism
E80.7 Disorder of bilirubin metabolism, unspecified
E83 Disorders of mineral metabolism
E83.0 Disorders of copper metabolism
E83.00 Disorder of copper metabolism, unspecified

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