ICD-10-CM 2027 diagnosis code
R44.9Unspecified symptoms and signs involving general sensations and perceptions
R44.9 is a valid, billable ICD-10-CM code for unspecified symptoms and signs involving general sensations and perceptions. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Unsp symptoms and signs w general sensations and perceptions
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 R44.9
R44.9 is the ICD-10-CM diagnosis code for unspecified symptoms and signs involving general sensations and perceptions. It belongs to category R44 (other symptoms and signs involving general sensations and perceptions), 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 R44, choose R44.9 (Unspecified symptoms and signs involving general sensations and perceptions) only when documentation doesn't support a more specific option: auditory hallucinations (R44.0), visual hallucinations (R44.1), other hallucinations (R44.2), hallucinations, unspecified (R44.3) and other symptoms and signs involving general sensations and perceptions (R44.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), 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 799.89 (other ill-defined conditions).
Notes that apply from higher levels
Instructions written at a parent level also apply to R44.9.
› From R44 Other symptoms and signs involving general sensations and perceptions
- disturbances of skin sensation (R20.-)
Broader instructions also apply from 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.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to R44.9.
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.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- 799.89Other ill-defined conditionsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about R44.9
Is R44.9 billable?
- Yes. R44.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R44.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R44.9 as a principal diagnosis.
Is R44.9 a CC or MCC?
- No. R44.9 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does R44.9 group to?
- R44.9 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). 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 R44.9?
- The CMS General Equivalence Mappings map R44.9 to ICD-9-CM 799.89.