R27 ICD-10-CM Code: Other lack of coordination

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

Official description

R27

Other lack of coordination

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

Where R27 sits

  1. 1

    Chapter 18

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

  2. 2

    Section

    Symptoms and signs involving the nervous and musculoskeletal systems (R25-R29)

  3. 3

    Category R27

    Other lack of coordination

  4. 4

    Code R27

    Other lack of coordination

Codes under R27

R27 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Notes for this code

Inclusion terms

No inclusion terms are listed for R27.

Code first

No “code first” instruction is listed for R27.

Use additional code

No “use additional code” instruction is listed for R27.

Excludes1

Conditions that should not be reported together with this code.

  • ataxic gait (R26.0)
  • hereditary ataxia (G11.-)
  • vertigo NOS (R42)

Excludes2

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

No Excludes2 note is listed for R27.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

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.

Frequently asked questions

What does ICD-10-CM code R27 mean?

R27 is the FY 2027 U.S. ICD-10-CM code for “Other lack of coordination.”

Is R27 a billable or specific ICD-10-CM code?

No. R27 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 R27 located in ICD-10-CM?

R27 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Symptoms and signs involving the nervous and musculoskeletal systems (R25-R29) (R25–R29), under category R27, Other lack of coordination.

What coding notes are listed for R27?

No inclusion terms are listed for R27 in this reference record. No code-first instruction is listed. Excludes1 notes: ataxic gait (R26.0); hereditary ataxia (G11.-); vertigo NOS (R42). No Excludes2 note is listed.