ICD-10-CM Use Additional Code Notes · Chapter 4 · FY 2027 E00-E89
Use Additional Code Notes in Chapter 4: Endocrine, nutritional and metabolic diseases ICD-10-CM
A Use Additional Code note means a second code should be added, after this one, to fully describe the condition. In Chapter 4 (E00-E89), notes printed in the chapter name other codes 88 times, and Use Additional Code Notes anywhere in the Tabular List name the chapter’s codes 31 times, covering 13 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
88
References in Its Notes
31
References to Its Codes
13
Chapter Codes Named
E00-E89
Chapter 4
Chapter 4
Use Additional Code Notes by the code that carries the note
59 of 59 shown
- E03.2 Hypothyroidism due to medicaments and other exogenous substances
- E06.0 Acute thyroiditis
- E06.4 Drug-induced thyroiditis
- E08.22 Diabetes mellitus due to underlying condition with diabetic chronic kidney disease
- E08.39 Diabetes mellitus due to underlying condition with other diabetic ophthalmic complication
- E08.621 Diabetes mellitus due to underlying condition with foot ulcer
- E08.622 Diabetes mellitus due to underlying condition with other skin ulcer
- code for hypoglycemia level, if applicable (E16.A-)
- E09.22 Drug or chemical induced diabetes mellitus with diabetic chronic kidney disease
- E09.39 Drug or chemical induced diabetes mellitus with other diabetic ophthalmic complication
- E09.621 Drug or chemical induced diabetes mellitus with foot ulcer
- E09.622 Drug or chemical induced diabetes mellitus with other skin ulcer
- code for hypoglycemia level, if applicable (E16.A-)
- E10.22 Type 1 diabetes mellitus with diabetic chronic kidney disease
- E10.39 Type 1 diabetes mellitus with other diabetic ophthalmic complication
- E10.621 Type 1 diabetes mellitus with foot ulcer
- E10.622 Type 1 diabetes mellitus with other skin ulcer
- code for hypoglycemia level, if applicable (E16.A-)
- E11.22 Type 2 diabetes mellitus with diabetic chronic kidney disease
- E11.39 Type 2 diabetes mellitus with other diabetic ophthalmic complication
- E11.621 Type 2 diabetes mellitus with foot ulcer
- E11.622 Type 2 diabetes mellitus with other skin ulcer
- code for hypoglycemia level, if applicable (E16.A-)
- E13.22 Other specified diabetes mellitus with diabetic chronic kidney disease
- E13.39 Other specified diabetes mellitus with other diabetic ophthalmic complication
- E13.621 Other specified diabetes mellitus with foot ulcer
- E13.622 Other specified diabetes mellitus with other skin ulcer
- code for hypoglycemia level, if applicable (E16.A-)
- E16.0 Drug-induced hypoglycemia without coma
- E16.1 Other hypoglycemia
- code for hypoglycemia level, if applicable (E16.A-)
- E16.2 Hypoglycemia, unspecified
- code for hypoglycemia level, if applicable (E16.A-)
- E22.1 Hyperprolactinemia
- E23.0 Hypopituitarism
- code, if applicable, for associated cachexia (E88.A)
- E23.1 Drug-induced hypopituitarism
- E24.2 Drug-induced Cushing's syndrome
- E25.8 Other adrenogenital disorders
- E27.3 Drug-induced adrenocortical insufficiency
- E28.0 Estrogen excess
- E28.1 Androgen excess
- E29.1 Testicular hypofunction
- E66.1 Drug-induced obesity
- E72.03 Lowe's syndrome
- code for associated glaucoma (H42)
- E83.19 Other disorders of iron metabolism
- code, if applicable, for idiopathic pulmonary hemosiderosis (J84.03)
- E84.0 Cystic fibrosis with pulmonary manifestations
- Pseudomonas (B96.5)
- code(s) for any associated disorders of electrolyte and acid-base balance (E87.-)
- E88.02 Plasminogen deficiency
- E88.14 HIV-associated lipodystrophy
- code for adverse effect, if applicable, to identify drug (T37.5X5-)
- E88.3 Tumor lysis syndrome
- code for adverse effect, if applicable, to identify drug (T45.1X5)
- obesity (E66.-)
- E88.82 Obesity due to disruption of MC4R pathway
- E89.1 Postprocedural hypoinsulinemia
- code, if known, for hypoglycemia level (E16.A-)
- O24.8 Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- O24.9 Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- O24.8 Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- O24.9 Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- O24.0 Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium: code from category E10 to further identify any manifestations
- O24.8 Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- O24.9 Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium: from categories E08, E09 and E13 to further identify any manifestation
- Z90.41 Acquired absence of pancreas: diabetes mellitus, postpancreatectomy (E13.-)
- E08.64 Diabetes mellitus due to underlying condition with hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E09.64 Drug or chemical induced diabetes mellitus with hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E10.64 Type 1 diabetes mellitus with hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E11.64 Type 2 diabetes mellitus with hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E13.64 Other specified diabetes mellitus with hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E16.0 Drug-induced hypoglycemia without coma: code for hypoglycemia level, if applicable (E16.A-)
- E16.1 Other hypoglycemia: code for hypoglycemia level, if applicable (E16.A-)
- E16.2 Hypoglycemia, unspecified: code for hypoglycemia level, if applicable (E16.A-)
- E89.83 Postprocedural hypoglycemia following a procedure: code, if known, for hypoglycemia level (E16.A-)
- E34.00 Carcinoid syndrome, unspecified
- G90.81 Serotonin syndrome: metabolic acidosis (E87.2-)
- E87.70 Fluid overload, unspecified
- M31.11 Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]: fluid overload, unspecified (E87.70)
- E86 Volume depletion: code(s) for any associated disorders of electrolyte and acid-base balance (E87.-)
- O26.89 Other specified pregnancy related conditions: code, if applicable, to identify specific condition such as insulin resistance (E88.81-)
- E88.A Wasting disease (syndrome) due to underlying condition
- Block A15-A19 Tuberculosis: code, if applicable, for associated cachexia (E88.A)
- E23.0 Hypopituitarism: code, if applicable, for associated cachexia (E88.A)
- J65 Pneumoconiosis associated with tuberculosis: code, if applicable, for associated cachexia (E88.A)
- N18 Chronic kidney disease (CKD): associated cachexia (E88.A)
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 Use Additional Code Notes anywhere in the Tabular List, including notes in other chapters.
← Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismChapter 5: Mental and behavioural disorders →
Questions About Use Additional Code Notes
What does a Use Additional Code note mean?
A Use Additional Code note tells you to add a second code, reported after the code that carries the note, to describe the condition completely. In an etiology/manifestation pair it sits at the etiology code and points to the manifestation (Section I.A.13). The FY 2027 Tabular List has 1,491 of them; 1,174 name other codes, with 1,438 references to 389 distinct codes, categories and ranges.
Where does the additional code go?
After the code carrying the note. For etiology/manifestation pairs the Guidelines are explicit: the etiology is sequenced first, followed by the manifestation code.
Related References
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.
