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ICD-10-CM 2027 diagnosis code

R41.4Neurologic neglect syndrome

✓ Billable / specificCC — complication/comorbidity

R41.4 is a valid, billable ICD-10-CM code for neurologic neglect syndrome. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Asomatognosia, ICD-10 code for Hemi-akinesia, ICD-10 code for Hemi-inattention.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R41.4

R41.4 is the ICD-10-CM diagnosis code for neurologic neglect syndrome. It belongs to category R41 (other symptoms and signs involving cognitive functions and awareness), block R40-R46 (symptoms and signs involving cognition, perception, emotional state and behavior) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R41 (other symptoms and signs involving cognitive functions and awareness), R41.4 is specifically for neurologic neglect syndrome. Related codes cover Disorientation, unspecified (R41.0), Anterograde amnesia (R41.1), retrograde amnesia (R41.2), other amnesia (R41.3), other symptoms and signs involving cognitive functions and awareness (R41.8) and unspecified symptoms and signs involving cognitive functions and awareness (R41.9).

Don't report R41.4 together with the conditions in its Excludes1 note: visuospatial deficit (R41.842).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 781.8 (neurologic neglect syndrome).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Asomatognosia
  • Hemi-akinesia
  • Hemi-inattention
  • Hemispatial neglect
  • Left-sided neglect
  • Sensory neglect
  • Visuospatial neglect
Excludes1Not coded here — never report together with this code

Notes that apply from higher levels

Instructions written at a parent level also apply to R41.4.

Alphabetic index entries

11 entries

Terms in the official ICD-10-CM index that lead to R41.4.

Codes whose notes reference R41.4

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 781.8Neurologic neglect syndromeexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R41.4

Is R41.4 billable?

Yes. R41.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R41.4 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R41.4 as a principal diagnosis.

Is R41.4 a CC or MCC?

R41.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does R41.4 group to?

R41.4 is used in the MS-DRG v44.0 logic for MS-DRG 091 (Other Disorders of Nervous System with MCC), MS-DRG 092 (Other Disorders of Nervous System with CC) and MS-DRG 093 (Other Disorders of Nervous System without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for R41.4?

The CMS General Equivalence Mappings map R41.4 to ICD-9-CM 781.8.