ICD-10-CM Excludes2 Notes · Chapter 4 · FY 2027 E00-E89

Excludes2 Notes in Chapter 4: Endocrine, nutritional and metabolic diseases ICD-10-CM

An Excludes2 note means "NOT INCLUDED HERE": the excluded condition is not part of this code, but a patient may have both, so both codes may be reported. In Chapter 4 (E00-E89), notes printed in the chapter name other codes 37 times, and Excludes2 Notes anywhere in the Tabular List name the chapter’s codes 111 times, covering 70 distinct codes, categories and ranges. Switch views to read the list either way.

✓ From the official FY 2027 ICD-10-CM Tabular ListDefinitions follow the Official Guidelines, Section I.A
37
References in Its Notes
111
References to Its Codes
70
Chapter Codes Named
E00-E89
Chapter 4
Chapter 4

Excludes2 Notes by the code that carries the note

22 of 22 shown
  • E21 Hyperparathyroidism and other disorders of parathyroid gland applies to 6 codes
    • familial hypocalciuric hypercalcemia (E83.52)
  • E21.2 Other hyperparathyroidism
    • familial hypocalciuric hypercalcemia (E83.52)
  • E34.8 Other specified endocrine disorders
    • pseudohypoparathyroidism (E20.1)
  • E36 Intraoperative complications of endocrine system applies to 5 codes
    • postprocedural endocrine and metabolic complications and disorders, not elsewhere classified (E89.-)
  • Block note Block E40-E46 Malnutrition applies to 8 codes
  • Block note Block E50-E64 Other nutritional deficiencies applies to 50 codes
  • E53.8 Deficiency of other specified B group vitamins
    • vitamin B12 deficiency anemia (D51.-)
  • E63 Other nutritional deficiencies applies to 4 codes
    • dehydration (E86.0)
    • failure to thrive, adult (R62.7)
    • failure to thrive, child (R62.51)
    • feeding problems in newborn (P92.-)
    • sequelae of malnutrition and other nutritional deficiencies (E64.-)
  • E64.0 Sequelae of protein-calorie malnutrition
    • retarded development following protein-calorie malnutrition (E45)
  • E66 Overweight and obesity applies to 10 codes
    • adiposogenital dystrophy (E23.6)
    • lipomatosis dolorosa [Dercum] (E88.2)
    • lipomatosis NOS (E88.2)
    • Prader-Willi syndrome (Q87.11)
  • Block note Block E70-E88 Metabolic disorders applies to 286 codes
    • Ehlers-Danlos syndromes (Q79.6-)
  • E71.3 Disorders of fatty-acid metabolism applies to 9 codes
    • carnitine deficiency due to inborn error of metabolism (E71.42)
  • E74.3 Other disorders of intestinal carbohydrate absorption applies to 2 codes
    • lactose intolerance (E73.-)
  • E83.3 Disorders of phosphorus metabolism and phosphatases applies to 4 codes
    • disorders of pyrophosphate metabolism (E83.82-)
  • E85 Amyloidosis applies to 9 codes
  • E85.0 Non-neuropathic heredofamilial amyloidosis
    • Transthyretin-related (ATTR) familial amyloid cardiomyopathy (E85.4)
  • E86 Volume depletion applies to 3 codes
    • hypovolemic shock NOS (R57.1)
  • E87.0 Hyperosmolality and hypernatremia
    • diabetes with hyperosmolarity (E08, E09, E11, E13 with final characters .00 or .01)
  • E87.29 Other acidosis
    • acute respiratory acidosis (J96.02)
    • chronic respiratory acidosis (J96.12)
  • E88.0 Disorders of plasma-protein metabolism, not elsewhere classified applies to 3 codes
    • disorder of lipoprotein metabolism (E78.-)
  • E88.A Wasting disease (syndrome) due to underlying condition
  • E89 Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified applies to 17 codes
    • intraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8)

The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Excludes2 Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Excludes2 Notes

What does an Excludes2 note mean?

An Excludes2 note means “Not included here”: the excluded condition is not part of the condition represented by the code, but a patient may have both conditions at the same time (Section I.A.12.b). The FY 2027 Tabular List has 2,529 of them; 2,493 name other codes, with 2,799 references to 1,779 distinct codes, categories and ranges.

Can both codes be reported when there is an Excludes2 note?

Yes. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate: that is, when the patient has both conditions and both are documented.

Related References

ICD-10-CM Official GuidelinesICD-10-CM Code LookupICD-10-CM Codes ListCode Lists by Tag

Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.