I73.81 – Erythromelalgia

ICD-10-CM 2027 diagnosis code · Diseases of arteries, arterioles and capillaries

Billable code

ICD-10-CM code I73.81

Code: I73.81 (claims format: I7381)
Description: Erythromelalgia
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I70-I79 Diseases of arteries, arterioles and capillaries
Parent codes: I73 › I73.8

Notes inherited from parent codes

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

I73 – Other peripheral vascular diseases

Excludes2 (not included here):

chilblains (T69.1)
frostbite (T33-T34)
immersion hand or foot (T69.0-)
spasm of cerebral artery (G45.9)

I73.8 – Other specified peripheral vascular diseases

Excludes1 (not coded here):

diabetic (peripheral) angiopathy (E08-E13 with .51-.52)

Index terms for I73.81

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

Related codes in I73.8

I73.89 – Other specified peripheral vascular diseasesBillable

Frequently asked questions

What is ICD-10 code I73.81?

I73.81 is the ICD-10-CM code for erythromelalgia, in the block I70-I79 (Diseases of arteries, arterioles and capillaries).

Is I73.81 a billable code?

Yes. I73.81 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I73.81 belong to?

It belongs to category I73 – Other peripheral vascular diseases.

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.