E70.4 — Disorders of histidine metabolism

Not billable

Is E70.4 billable?

No — E70.4 is a non-billable header code. E70.4 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath E70.4.

Billable codes under this header

E70.4 at a glance

Code	E70.4
Description	Disorders of histidine metabolism
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together — inherited from Chapter 4

The conditions below can never be reported together with E70.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes1 — never code together — inherited from E70-E88

The conditions below can never be reported together with E70.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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 — inherited from E70-E88

The conditions below are not part of E70.4, but a patient may have both at the same time. When documentation supports it, E70.4 and the excluded code may both be reported.

Ehlers-Danlos syndromes (Q79.6-)

What codes fall under E70.4? (3)

How long has E70.4 existed?

E70.4 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.