Version 2024
No Valid Principal Dx

2024 ICD-10-CM Diagnosis Code R29.2

Abnormal reflex

ICD-10-CM Code:
R29.2
ICD-10 Code for:
Abnormal reflex
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    (R00–R99)
    • Symptoms and signs involving the nervous and musculoskeletal systems
      (R25-R29)
      • Other symptoms and signs involving the nervous and musculoskeletal systems
        (R29)

R29.2 is a billable diagnosis code used to specify a medical diagnosis of abnormal reflex. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abdominal reflex absent
  • Abdominal reflex delayed
  • Abdominal reflex finding
  • Abdominal reflex finding
  • Abdominal reflex finding
  • Abdominal reflex finding
  • Abdominal reflex finding
  • Abdominal reflex present only with reinforcement
  • Abdominal reflex unequal
  • Abnormal acoustic reflex
  • Abnormal corneal reflex
  • Abnormal postural reflex
  • Abnormal reflex
  • Absence of direct light pupillary reflex
  • Absent palatal reflex
  • Absent plantar response
  • Absent plantar response left
  • Absent plantar response right
  • Absent pupil reaction
  • Absent reflex
  • Absent tendon reflex
  • Acoustic reflex finding
  • Anal reflex absent
  • Anal reflex brisk
  • Anal reflex delayed
  • Anal reflex finding
  • Anal reflex finding
  • Anal reflex finding
  • Anal reflex finding
  • Anal reflex finding
  • Anal reflex present only with reinforcement
  • Ankle reflex absent
  • Ankle reflex brisk
  • Ankle reflex delayed
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex finding
  • Ankle reflex inverted
  • Ankle reflex present only with reinforcement
  • Ankle reflex, slow recovery phase
  • Ankle reflexes unequal
  • Asymmetrical Moro reflex
  • Asymmetrical tonic neck reflex finding
  • Auropalpebral reflex absent
  • Auropalpebral reflex finding
  • Biceps reflex absent
  • Biceps reflex brisk
  • Biceps reflex delayed
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex finding
  • Biceps reflex inverted
  • Biceps reflex present only with reinforcement
  • Biceps reflexes unequal
  • Bilateral absent plantar response
  • Bilateral equivocal plantar response
  • Bilateral extensor plantar response
  • Blink reflex absent
  • Blink reflex finding
  • Blink reflex finding
  • Blink reflex finding
  • Blink reflex finding
  • Blinking
  • Brisk peripheral reflexes
  • Brisk tendon reflex
  • Brudzinski's sign
  • Bulbocavernosus reflex finding
  • Bulbocavernosus reflex positive
  • Cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss syndrome
  • Chaddock's reflex
  • Ciliospinal reflex finding
  • Ciliospinal reflex positive
  • Corneal reflex absent
  • Corneal reflex delayed
  • Corneal reflex finding
  • Corneal reflex finding
  • Corneal reflex finding
  • Corneal reflex finding
  • Corneal reflex finding
  • Corneal reflex finding
  • Cough impulse impaired
  • Cough impulse of mass absent
  • Cough reflex absent
  • Cough reflex finding
  • Cough reflex finding
  • Cremasteric reflex finding
  • Cremasteric reflex finding
  • Cremasteric reflex negative
  • Decreased abdominal reflex
  • Decreased anal reflex
  • Decreased ankle reflex
  • Decreased biceps reflex
  • Decreased blinking
  • Decreased corneal reflex
  • Decreased cremasteric reflex
  • Decreased finger jerk reflex
  • Decreased flexor reflex
  • Decreased jaw reflex
  • Decreased knee reflex
  • Decreased pupillary reflex
  • Decreased reflex
  • Decreased sacral reflex
  • Decreased stretch reflex
  • Decreased supinator reflex
  • Decreased suprapatellar jerk reflex
  • Decreased tendon reflex
  • Decreased triceps reflex
  • Defecation reflex - spurious diarrhea
  • Defecation reflex abnormal - constipated
  • Defecation reflex finding
  • Defecation reflex finding
  • Deficient blink reflex
  • Early-onset myopathy, areflexia, respiratory distress, dysphagia syndrome
  • Equivocal plantar response
  • Equivocal plantar response left
  • Equivocal plantar response right
  • Exaggeration of ankle reflex
  • Exaggeration of biceps reflex
  • Exaggeration of brachioradialis reflex
  • Exaggeration of jaw reflex
  • Exaggeration of knee reflex
  • Exaggeration of suprapatellar jerk
  • Exaggeration of triceps reflex
  • Extensor plantar response finding
  • Extensor plantar response left
  • Extensor plantar response right
  • Eye cornering in direction of sound - finding
  • Eye cornering in direction of sound - finding
  • Eye cornering in direction of sound absent
  • Eye cornering in direction of sound equivocal
  • Eyelash reflex absent
  • Eyelash reflex finding
  • Finding of cough impulse of lump
  • Finger jerk absent
  • Finger jerk brisk
  • Finger jerk delayed
  • Finger jerk finding
  • Finger jerk finding
  • Finger jerk finding
  • Finger jerk finding
  • Finger jerk finding
  • Finger jerk finding
  • Finger jerk inverted
  • Finger jerk present only with reinforcement
  • Fisting reflex absent
  • Fisting reflex equivocal
  • Fisting reflex finding
  • Fisting reflex finding
  • Freezing reflex absent
  • Freezing reflex equivocal
  • Freezing reflex finding
  • Freezing reflex finding
  • Freezing reflex finding
  • Freezing reflex present
  • Galant's reflex absent
  • Galant's reflex equivocal
  • Galant's reflex finding
  • Galant's reflex finding
  • General areflexia
  • Glabella reflex absent
  • Glabella reflex finding
  • Glabella reflex finding
  • Glabella reflex present
  • Hoffman reflex equivocal
  • Hoffman's reflex finding
  • Hoffman's reflex finding
  • Hoffman's reflex positive
  • Horizontal board test
  • Hyperreflexia
  • Increased flexor reflex
  • Increased stretch reflex
  • Jaw reflex absent
  • Jaw reflex brisk
  • Jaw reflex delayed
  • Jaw reflex finding
  • Jaw reflex finding
  • Jaw reflex finding
  • Jaw reflex finding
  • Jaw reflex finding
  • Kernig's sign
  • Knee reflex absent
  • Knee reflex brisk
  • Knee reflex delayed
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex finding
  • Knee reflex inverted
  • Knee reflex present only with reinforcement
  • Knee reflexes unequal
  • Left corneal reflex absent
  • Mass reflex finding
  • Mass reflex present
  • Moro reflex equivocal
  • Moro reflex finding
  • Moro reflex finding
  • Moro reflex finding
  • Moro reflex present
  • Motor response to deep glabella pressure - finding
  • Motor response to deep glabella pressure present
  • Nervous system respiratory control finding
  • Nervous system respiratory control finding
  • Oppenheim's reflex
  • Palmar reflex absent
  • Palmar reflex equivocal
  • Palmar reflex finding
  • Palmar reflex finding
  • Palmomental reflex absent
  • Palmomental reflex equivocal
  • Palmomental reflex finding
  • Palmomental reflex finding
  • Parachute reaction absent
  • Parachute reaction equivocal
  • Parachute reaction present
  • Parachute reflex finding
  • Parachute reflex finding
  • Parachute reflex finding
  • Pharyngeal gag reflex finding
  • Pharyngeal gag reflex negative
  • Placing reaction absent
  • Placing reaction equivocal
  • Placing reaction finding
  • Placing reaction finding
  • Plantar grasp reflex absent
  • Plantar grasp reflex equivocal
  • Plantar grasp reflex finding
  • Plantar grasp reflex finding
  • Positive horizontal board test
  • Primary walking reaction - finding
  • Primary walking reaction - finding
  • Primary walking reaction absent
  • Primary walking reaction equivocal
  • Progressive spinocerebellar ataxia with decreased tendon reflexes
  • Radial reflex absent
  • Radial reflexes unequal
  • Reflex disturbances due to substance use
  • Right corneal reflex absent
  • Rooting reflex absent
  • Rooting reflex equivocal
  • Rooting reflex finding
  • Rooting reflex finding
  • Sacral reflex absent
  • Sacral reflex brisk
  • Sacral reflex delayed
  • Sacral reflex finding
  • Sacral reflex finding
  • Sacral reflex finding
  • Sacral reflex finding
  • Sacral reflex finding
  • Sacral reflex finding
  • Sacral reflex inverted
  • Sacral reflex present only with reinforcement
  • Slow recovery phase of reflex
  • Slow relaxing peripheral reflexes
  • Snout reflex absent
  • Snout reflex equivocal
  • Snout reflex finding
  • Snout reflex finding
  • Snout reflex finding
  • Snout reflex present
  • Stepping reflex absent
  • Stepping reflex equivocal
  • Stepping reflex finding
  • Stepping reflex finding
  • Sucking reflex absent
  • Sucking reflex equivocal
  • Sucking reflex finding
  • Sucking reflex finding
  • Supinator reflex brisk
  • Supinator reflex delayed
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex finding
  • Supinator reflex inverted
  • Supinator reflex present only with reinforcement
  • Suprapatellar jerk abnormal
  • Suprapatellar jerk absent
  • Suprapatellar jerk reflexes unequal
  • Suprapatellar reflex finding
  • Suprapatellar reflex finding
  • Suprapatellar reflex finding
  • Suprapatellar reflex finding
  • Suprapatellar reflex finding
  • Swallowing reflex absent
  • Swallowing reflex equivocal
  • Swallowing reflex finding
  • Swallowing reflex finding
  • Tonic neck reflex absent
  • Tonic neck reflex equivocal
  • Tonic neck reflex finding
  • Tonic neck reflex finding
  • Tonic neck reflex finding
  • Triceps reflex absent
  • Triceps reflex brisk
  • Triceps reflex delayed
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex finding
  • Triceps reflex inverted
  • Triceps reflex present only with reinforcement
  • Triceps reflexes unequal
  • Unequal reflexes
  • Vestibulo-ocular reflex absent
  • Vestibulo-ocular reflex finding

Clinical Classification

Clinical Information

  • Blinking

    brief closing of the eyelids by involuntary normal periodic closing, as a protective measure, or by voluntary action.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • abnormal pupillary reflex H57.0
  • hyperactive gag reflex J39.2
  • vasovagal reaction or syncope R55

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert R29.2 to ICD-9-CM

  • ICD-9-CM Code: 796.1 - Abnormal reflex

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

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.