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ICD-10-CM Code R29.2
Abnormal reflex

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

R29.2 is a billable ICD code used to specify a diagnosis of abnormal reflex. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code R292 is used to code Hyperreflexia

Hyperreflexia (or hyper-reflexia) is defined as overactive or overresponsive reflexes. Examples of this can include twitching or spastic tendencies, which are indicative of upper motor neuron disease as well as the lessening or loss of control ordinarily exerted by higher brain centers of lower neural pathways (disinhibition). See Autonomic dysreflexia.

MeSH Code: D012021
ICD 9 Code: 796.1
Source: Wikipedia

Coding Notes for R29.2 Info for medical coders on how to properly use this ICD-10 code

Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here."
Abnormal pupillary reflex - instead, use code H57.0
Hyperactive gag reflex - instead, use code J39.2
Vasovagal reaction or syncope - instead, use Code R55

MS-DRG Mapping

  • DRG Group #091-093 - Other disorders of nervous system with MCC.
  • DRG Group #091-093 - Other disorders of nervous system with CC.
  • DRG Group #091-093 - Other disorders of nervous system without CC or MCC.

ICD-10-CM Alphabetical Index References for 'R29.2 - Abnormal reflex'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code R29.2. Click on any term below to browse the alphabetical index.

Reflex (R29.2)
Hyper-reflexia (R29.2)
Hyporeflexia (R29.2)


Abnormal reflex (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 796.1 was previously used, R29.2 is the appropriate modern ICD10 code.

Parent Code: R29 - Other symptoms and signs involving the nervous and musculoskeletal systems

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/R292