E72.02 – Hartnup's disease

ICD-10-CM 2027 diagnosis code · Metabolic disorders

Billable code

ICD-10-CM code E72.02

Code: E72.02 (claims format: E7202)
Description: Hartnup's disease
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E70-E88 Metabolic disorders
Parent codes: E72 › E72.0

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E72 – Other disorders of amino-acid metabolism

Excludes1 (not coded here):

disorders of:
aromatic amino-acid metabolism (E70.-)
branched-chain amino-acid metabolism (E71.0-E71.2)
fatty-acid metabolism (E71.3)
purine and pyrimidine metabolism (E79.-)
gout (M1A.-, M10.-)

E72.0 – Disorders of amino-acid transport

Excludes1 (not coded here):

disorders of tryptophan metabolism (E70.5)

Block E70-E88

Excludes1 (not coded here):

androgen insensitivity syndrome (E34.5-)
congenital adrenal hyperplasia (E25.0)
hemolytic anemias attributable to enzyme disorders (D55.-)
Marfan syndrome (Q87.4-)
5-alpha-reductase deficiency (E29.1)

Excludes2 (not included here):

Ehlers-Danlos syndromes (Q79.6-)

Index terms for E72.02

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in E72.0

E72.00 – Disorders of amino-acid transport, unspecifiedBillable
E72.01 – CystinuriaBillable
E72.03 – Lowe's syndromeBillable
E72.04 – CystinosisBillable
E72.09 – Other disorders of amino-acid transportBillable

Frequently asked questions

What is ICD-10 code E72.02?

E72.02 is the ICD-10-CM code for hartnup's disease, in the block E70-E88 (Metabolic disorders).

Is E72.02 a billable code?

Yes. E72.02 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does E72.02 belong to?

It belongs to category E72 – Other disorders of amino-acid metabolism.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.