U.S. ICD-10-CM · FY 2027

R94 ICD-10-CM Code: Abnormal results of function studies

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

R94

Abnormal results of function studies

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where R94 sits

  1. 1

    Chapter 18

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

  2. 2

    Section

    Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)

  3. 3

    Category R94

    Abnormal results of function studies

  4. 4

    Code R94

    Abnormal results of function studies

More specific choices

Codes under R94

R94 is a non-billable category. Choose the child code that best matches the documented diagnosis.

R94.0

Abnormal results of function studies of central nervous system

R94.1

Abnormal results of function studies of peripheral nervous system and special senses

R94.2

Abnormal results of pulmonary function studies

R94.3

Abnormal results of cardiovascular function studies

R94.4

Abnormal results of kidney function studies

R94.5

Abnormal results of liver function studies

R94.6

Abnormal results of thyroid function studies

R94.7

Abnormal results of other endocrine function studies

R94.8

Abnormal results of function studies of other organs and systems

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for R94.

Code first

No “code first” instruction is listed for R94.

Use additional code

No “use additional code” instruction is listed for R94.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for R94.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for R94.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code R94 mean?

R94 is the FY 2027 U.S. ICD-10-CM code for “Abnormal results of function studies.”

Is R94 a billable or specific ICD-10-CM code?

No. R94 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is R94 located in ICD-10-CM?

R94 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94) (R90–R94), under category R94, Abnormal results of function studies.

What coding notes are listed for R94?

No inclusion terms are listed for R94 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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