2026 ICD-10-CM Diagnosis Code R27.8Other lack of coordination

ICD-10-CM Codes›R00–R99›R25-R29›R27

ICD-10-CM R27.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R27.8 is a billable ICD-10-CM diagnosis code for other lack of coordination. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nervous system signs and symptoms.

Code Identity

ICD-10-CM Code
R27.8
Billable Status
Yes — Valid for Submission
Code Describes
Other lack of coordination
Short Description
Other lack of coordination
Same as the full description in the CMS dataset.
Parent Code
R27
Other lack of coordination

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR25-R29Symptoms and signs involving the nervous and musculoskeletal systems
CategoryR27Other lack of coordination
This CodeR27.8Other lack of coordination

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute cerebellar ataxia
  • Asterixis
  • Asynergia
  • Coarse tremor
  • Control of movement - finding
  • Decreased coordination
  • Deep dysgraphia
  • Difficulty balancing
  • Difficulty balancing when bending
  • Difficulty balancing when reaching
  • Difficulty balancing when sitting
  • Difficulty standing alone
  • Difficulty standing on one leg
  • Does not balance
  • Does not balance when bending
  • Does not balance when reaching
  • Does not balance when sitting
  • Does not stand alone
  • Does not stand on one leg
  • Drops things
  • Dysdiadochokinesis
  • Dysdiadochokinesis present
  • Dysgraphia
  • Dysmetria
  • Dysmetria of limb
  • Dysmetria of lower limb
  • Dysmetria of upper limb
  • Dyspraxia
  • Dyspraxia of arm
  • Finding of body control
  • Finding of general balance
  • Finding of pattern of coordination
  • Finding of sitting balance
  • Finding related to ability to balance when bending
  • Finding related to ability to balance when reaching
  • Finding related to ability to balance when sitting
  • Finding related to ability to bend to pick up object without falling
  • Finding related to ability to stand alone
  • Finding related to ability to stand on one leg
  • Fine motor disability
  • Finger-nose test abnormal
  • Finger-nose test finding
  • Fumbles with things
  • General unsteadiness
  • Incoordination
  • Loss of control of movement
  • Loss of trunk control
  • Muscular incoordination
  • Named sign of balance
  • Ocular fixation - finding
  • Ocular fixation projection - finding
  • Paragraphia
  • Past pointing
  • Phonological dysgraphia
  • Poor balance
  • Rebound dysmetria
  • Romberg sign
  • Romberg test evokes stiff fall backward
  • Romberg test positive and direction of fall affected by head turn
  • Surface dysgraphia
  • Tremor of limb
  • Trunk control - finding
  • Unable to bend
  • Unable to bend down
  • Unable to bend to pick up object without falling
  • Unable to stand alone
  • Unable to stand on one leg

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Asterixis
    • Asynergia, asynergy
    • Ataxia, ataxy, ataxic
      • acute
    • Ataxia, ataxy, ataxic
      • general
    • Disturbance(s)
      • coordination
    • Dysgraphia
    • Dysmetria
    • Dyspraxia
    • Incoordinate, incoordination
      • muscular
    • Lack of
      • coordination
        • specified type NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM010
Nervous system signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Dysmetria

    lack of coordination of movement necessary to execute a smooth action; often the person over reaches or under reaches. this condition is sometimes symptomatic of a cerebellar cognitive dysfunction.

  • Asterixis

    a tremor of the wrist that is observed when the wrist is extended.

  • Dysgraphia

    a neurological disorder characterized by impairment of handwriting ability that may be associated with other learning disabilities in children or traumatic damage to the parietal lobe in adults.

Patient EducationClinical

Movement Disorders

Movement disorders are neurologic conditions that cause problems with movement, such as:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert R27.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
781.3 Lack of coordination
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R27.8Overview

Is R27.8 (Other lack of coordination) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other lack of coordination on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can R27.8 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the other lack of coordination is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R27.8?

Under the General Equivalence Mappings, other lack of coordination converts to ICD-9-CM 781.3 (lack of coordination). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.