2026 ICD-10-CM Diagnosis Code E34.329Unspecified genetic causes of short stature

ICD-10-CM Codes›E00–E89›E20-E35›E34

ICD-10-CM E34.329
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

E34.329 is a billable ICD-10-CM diagnosis code for unspecified genetic causes of short stature. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 643 through 645. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified endocrine disorders.

Code Identity

ICD-10-CM Code
E34.329
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified genetic causes of short stature
Short Description
Unspecified genetic causes of short stature
Same as the full description in the CMS dataset.
Parent Code
E34.32
Genetic causes of short stature

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE20-E35Disorders of other endocrine glands
CategoryE34Other endocrine disorders
This CodeE34.329Unspecified genetic causes of short stature

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.

    • Short, shortening, shortness
      • stature (child) (hereditary) (idiopathic) NEC
        • due to
          • genetic causes

Clinical ClassificationClinical

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

CCSR END015
Other specified and unspecified endocrine disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Code History & ChangesHistory

Replacement E34.329 replaces the following previously assigned code(s):

  • E34.3 - Short stature due to endocrine disorder
FY 2023AddedAdded to the ICD-10-CM code setEffective October 1, 2022.
FY 2024–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About E34.329Overview

Is E34.329 (Genetic causes of short stature) a billable code?

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

What MS-DRG does E34.329 group to?

When unspecified genetic causes of short stature is the principal diagnosis on an inpatient stay, it groups to MS-DRG 643, 644, 645, with relative weights from 0.7683 to 1.6461 depending on complications. Higher weights mean higher Medicare reimbursement.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.