ICD10BillableValid for clinical use

ICD-10 Code R29.810: Facial weakness

R29.810 is a billable ICD-10 diagnosis code used to classify Facial weakness in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

When is it used?

  • May be used when a clinician documents facial weakness in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
block
R25-R29Symptoms and signs involving the nervous and musculoskeletal systems
category
R29Other symptoms and signs involving the nervous and musculoskeletal systems
category
R29.8Other symptoms and signs involving the nervous and musculoskeletal systems
category
R29.81Other symptoms and signs involving the nervous system
currentR29.81

Official coding notes

Inclusion terms
  • Facial droop
Excludes1 (do not code together)
  • Bell's palsy (G51.0)
  • facial weakness following cerebrovascular disease (I69. with final characters -92)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General Physician

Coding guidelines

Common synonyms

Facial weakness

Frequently asked questions

Code details

CodeR29.810
SystemICD10
Display nameFacial weakness
ChapterSymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
BlockSymptoms and signs involving the nervous and musculoskeletal systems

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
DroopWeak, weakening, weakness(generalized)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code R29.810 for Facial weakness | HealthAssure