2026 ICD-10-CM Diagnosis Code R46.0Very low level of personal hygiene

ICD-10-CM Codes›R00–R99›R40-R46›R46

ICD-10-CM R46.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R46.0 is a billable ICD-10-CM diagnosis code for very low level of personal hygiene. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 951. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as hands dirty. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Symptoms of mental and substance use conditions.

Code Identity

ICD-10-CM Code
R46.0
Billable Status
Yes — Valid for Submission
Code Describes
Very low level of personal hygiene
Short Description
Very low level of personal hygiene
Same as the full description in the CMS dataset.
Parent Code
R46
Symptoms and signs involving appearance and behavior

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR40-R46Symptoms and signs involving cognition, perception, emotional state and behavior
CategoryR46Symptoms and signs involving appearance and behavior
This CodeR46.0Very low level of personal hygiene

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hands dirty
  • Neglect of personal hygiene
  • Personal appearance dirty
  • Personal hygiene finding
  • Self-neglect
  • Very low level of personal hygiene

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

CCSR SYM008
Symptoms of mental and substance use conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert R46.0 to ICD-9-CMHistory

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

ICD-9-CM
799.89 Ill-define condition NEC
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 R46.0Overview

What is the ICD-10 code for very low level of personal hygiene?

The ICD-10-CM code for very low level of personal hygiene is R46.0 (sometimes written as R460). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is R46.0 (Symptoms and signs involving appearance and behavior) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report very low level of personal hygiene on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does R46.0 group to?

When very low level of personal hygiene is the principal diagnosis on an inpatient stay, it groups to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.556. Higher weights mean higher Medicare reimbursement.

Can R46.0 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the very low level of personal hygiene is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R46.0?

Under the General Equivalence Mappings, very low level of personal hygiene converts to ICD-9-CM 799.89 (ill-define condition NEC). The mapping is approximate, so confirm the match fits the documentation.