1. ICD-10-CM Codes
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2. E00-E89
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3. E70-E88
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4. E71-
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5. 2023 ICD-10-CM Diagnosis Code E71.120

2023 ICD-10-CM Diagnosis Code E71.120

Methylmalonic acidemia

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• E71.120 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 E71.120 became effective on October 1, 2022.
• This is the American ICD-10-CM version of E71.120 - other international versions of ICD-10 E71.120 may differ.

• Cobalamin c disease
• Methylmalonic acidemia, cobalamin c type

• A rare autosomal recessive inherited disorder caused by mutations of the mut, mmaa, mmab, mmadhc, and mcee genes. It is characterized by abnormalities in the metabolism of lipids and proteins. Signs and symptoms usually appear early in life and vary from mild to life threatening. They include vomiting, dehydration, hypotonia, developmental delays, hepatomegaly, lethargy, intellectual disabilities, and chronic kidney disease.
• Autosomal recessive aminoacidopathy characterized by an excess of methylmalonic acid in the blood and urine, with metabolic ketoacidosis, hyperglycinemia, hyperglycinuria and hyperammonemia; results from defects that cause deficiencies of methylmalonyl-coa mutase.

• 642 Inborn and other disorders of metabolism

Convert E71.120 to ICD-9-CM

• 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
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Code Also: D59.32
  ICD-10-CM Diagnosis Code D59.32

  Hereditary hemolytic-uremic syndrome

  2023 - New Code Billable/Specific Code

  Applicable To

  • Atypical hemolytic uremic syndrome with an identified genetic cause

  Code Also

  • , if applicable:
  • defects in the complement system (D84.1)
  • methylmalonic acidemia (E71.120)

• Acidemia E87.20
  - see also Acidosis
  ICD-10-CM Diagnosis Code E87.20

  Acidosis, unspecified

  2023 - New Code Billable/Specific Code

  Applicable To

  • Lactic acidosis NOS
  • Metabolic acidosis NOS

  Code Also

  • , if applicable, respiratory failure with hypercapnia (J96. with 5th character 2)
  • methylmalonic E71.120
• Disorder (of) - see also Disease
  • metabolism NOS E88.9
    ICD-10-CM Diagnosis Code E88.9

    Metabolic disorder, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • amino-acid E72.9
      ICD-10-CM Diagnosis Code E72.9

      Disorder of amino-acid metabolism, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      • branched chain E71.2
        ICD-10-CM Diagnosis Code E71.2

        Disorder of branched-chain amino-acid metabolism, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        • methylmalonic acidemia E71.120
  • methylmalonic acidemia E71.120
• Methylmalonic acidemia E71.120

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