2023

  1. ICD-10-CM Codes
    2. ›
  2. E00-E89
    3. ›
  3. E70-E88
    4. ›
  4. E73-
    5. ›
  5. 2023 ICD-10-CM Diagnosis Code E73.0

2023 ICD-10-CM Diagnosis Code E73.0

Congenital lactase deficiency

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • E73.0 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 E73.0 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of E73.0 - other international versions of ICD-10 E73.0 may differ.
The following code(s) above E73.0 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 E73.0:
  • E00-E89
    2023 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
    2023 ICD-10-CM Range E70-E88

    Metabolic disorders

    Type 1 Excludes
    • androgen insensitivity syndrome (E34.5-)
    • congenital adrenal hyperplasia (E25.0)
    • hemolytic anemias attributable to enzyme disorders (D55.-)
    • Marfan's syndrome (Q87.4)
    • 5-alpha-reductase deficiency (E29.1)
    Type 2 Excludes
    • Ehlers-Danlos syndromes (Q79.6-)
    Metabolic disorders
ICD-10-CM E73.0 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert E73.0 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to E73.0:

ICD-10-CM Codes Adjacent To E73.0
E72.50 Disorder of glycine metabolism, unspecified
E72.51 Non-ketotic hyperglycinemia
E72.52 Trimethylaminuria
E72.53 Primary hyperoxaluria
E72.59 Other disorders of glycine metabolism
E72.8 Other specified disorders of amino-acid metabolism
E72.81 Disorders of gamma aminobutyric acid metabolism
E72.89 Other specified disorders of amino-acid metabolism
E72.9 Disorder of amino-acid metabolism, unspecified
E73 Lactose intolerance
E73.0 Congenital lactase deficiency
E73.1 Secondary lactase deficiency
E73.8 Other lactose intolerance
E73.9 Lactose intolerance, unspecified
E74 Other disorders of carbohydrate metabolism
E74.0 Glycogen storage disease
E74.00 …… unspecified
E74.01 von Gierke disease
E74.02 Pompe disease
E74.03 Cori disease
E74.04 McArdle disease

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

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