2026 ICD-10-CM Diagnosis Code R29.890Loss of height

ICD-10-CM Codes›R00–R99›R25-R29›R29

ICD-10-CM R29.890
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R29.890 is a billable ICD-10-CM diagnosis code for loss of height. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). 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 decrease in height. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other general signs and symptoms.

Code Identity

ICD-10-CM Code
R29.890
Billable Status
Yes — Valid for Submission
Code Describes
Loss of height
Short Description
Loss of height
Same as the full description in the CMS dataset.
Parent Code
R29.89
Other symptoms and signs involving the musculoskeletal system

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR25-R29Symptoms and signs involving the nervous and musculoskeletal systems
CategoryR29Other symptoms and signs involving the nervous and musculoskeletal systems
This CodeR29.890Loss of height

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Decrease in height

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abnormal, abnormality, abnormalities
      • loss of
        • height
    • Loss(of)
      • height

Clinical ClassificationClinical

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

CCSR SYM016
Other general signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert R29.890 to ICD-9-CMHistory

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

ICD-9-CM
781.91 Loss of height
Exact Match The mapping is direct, with no qualifiers.

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 R29.890Overview

Is R29.890 a billable code?

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

Can R29.890 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the loss of height is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R29.890?

Under the General Equivalence Mappings, loss of height converts to ICD-9-CM 781.91 (loss of height). The mapping is a direct match.

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.