R16Header code — not billable

Hepatomegaly and splenomegaly, not elsewhere classified

Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Category
R16
Effective date
October 1, 2026

Related codes in category R16

R16.0Hepatomegaly, not elsewhere classifiedYesR16.1Splenomegaly, not elsewhere classifiedYesR16.2Hepatomegaly with splenomegaly, not elsewhere classifiedYes

Frequently asked questions

What is ICD-10 code R16?

R16 is an ICD-10-CM diagnosis code for Hepatomegaly and splenomegaly, not elsewhere classified.

Is R16 a billable code?

No. R16 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is R16 in?

R16 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

When did R16 become effective?

R16 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to R16?

R16 belongs to category R16, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.