ICD-10-CM Code For Prolonged Stay In Weightless Environment: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group X52 includes diagnoses for accidental exposure to other specified factors, specifically prolonged stays in weightless or microgravity environments and their physiological consequences. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving exposure-related effects such as musculoskeletal deconditioning, neurovestibular dysfunction, and fluid redistribution that affect patient management and follow-up. Accurate coding within the ICD-10-CM X52 group supports proper claim adjudication and complete clinical documentation for care related to weightless environment exposure.

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ICD-10-CM X52: Prolonged Stay In Weightless Environment Overview

This diagnosis group represents exposure-related conditions from extended time in a weightless or microgravity environment, such as during spaceflight. The codes target physiological effects and complications arising from prolonged absence of gravitational load, including musculoskeletal deconditioning, fluid shifts, and related systemic effects. Accurate coding matters for proper clinical documentation and for reimbursement processes tied to the complexity of care for such exposures.

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ICD-10-CM Code For Prolonged Stay In Weightless Environment: Group Overview

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ICD-10-CM X52: Prolonged Stay In Weightless Environment Overview

When to Use

Use a code from this group when a patient has documented health effects directly attributable to an extended stay in a weightless or microgravity environment. Codes apply when clinical documentation links symptoms, complications, or treatment needs to the exposure rather than to unrelated etiologies.

ICD-10-CM Codes

3 rows

ICD-10-CM Code	Description
X52.XXXA	Prolonged stay in weightless environment, initial encounter
X52.XXXD	Prolonged stay in weightless environment, subsequent encounter
X52.XXXS	Prolonged stay in weightless environment, sequela

Typical Clinical Scenarios

A young astronaut returning from a prolonged mission aboard a spacecraft presents to the emergency department with acute orthostatic hypotension, dizziness, and muscle weakness after re-exposure to gravity. The patient was in a weightless environment for several weeks and now requires immediate evaluation and stabilization for reconditioning and fluid management; the encounter is coded to indicate accidental exposure related to prolonged weightlessness during the mission. Typical codes: X52.XXXA
A professional astronaut in a follow-up outpatient visit months after an extended orbital assignment reports persistent deconditioning, reduced bone density on DEXA, and chronic balance impairment related to long-duration microgravity exposure. The visit documents ongoing sequelae from the prior prolonged stay in a weightless environment and is coded to capture the non-acute, continuing effects of that exposure. Typical codes: X52.XXXS
A hospitalized patient develops a complication of prolonged spaceflight exposure manifesting as syncope with fall and resultant rib fracture shortly after return to Earth; care focuses on acute injury management and attribution of the event to recent weightlessness. The admission records link the fall and resulting traumatic injury to the preceding prolonged exposure to a weightless environment, so a code from this group is assigned as a contributing external cause. Typical codes: X52.XXXD

Related Codes

X58-EXPOSURE-TO-OTHER-SPECIFIED-FACTORS

ICD-10-CM Code For Exposure To Other Specified Factors: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

3 rows

ICD-10-CM Code	Description
X52.XXXA	Prolonged stay in weightless environment, initial encounter
X52.XXXD	Prolonged stay in weightless environment, subsequent encounter
X52.XXXS	Prolonged stay in weightless environment, sequela

Typical Clinical Scenarios

A young astronaut returning from a prolonged mission aboard a spacecraft presents to the emergency department with acute orthostatic hypotension, dizziness, and muscle weakness after re-exposure to gravity. The patient was in a weightless environment for several weeks and now requires immediate evaluation and stabilization for reconditioning and fluid management; the encounter is coded to indicate accidental exposure related to prolonged weightlessness during the mission. Typical codes: X52.XXXA
A professional astronaut in a follow-up outpatient visit months after an extended orbital assignment reports persistent deconditioning, reduced bone density on DEXA, and chronic balance impairment related to long-duration microgravity exposure. The visit documents ongoing sequelae from the prior prolonged stay in a weightless environment and is coded to capture the non-acute, continuing effects of that exposure. Typical codes: X52.XXXS
A hospitalized patient develops a complication of prolonged spaceflight exposure manifesting as syncope with fall and resultant rib fracture shortly after return to Earth; care focuses on acute injury management and attribution of the event to recent weightlessness. The admission records link the fall and resulting traumatic injury to the preceding prolonged exposure to a weightless environment, so a code from this group is assigned as a contributing external cause. Typical codes: X52.XXXD

Related Codes

X58-EXPOSURE-TO-OTHER-SPECIFIED-FACTORS

ICD-10-CM Code For Exposure To Other Specified Factors: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Prolonged Stay In Weightless Environment: Group Overview

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ICD-10-CM X52: Prolonged Stay In Weightless Environment Overview

ICD-10-CM Code For Prolonged Stay In Weightless Environment: Group Overview

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ICD-10-CM X52: Prolonged Stay In Weightless Environment Overview

When to Use

ICD-10-CM Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes represent a prolonged stay in a weightless environment?

What types of physiological effects are documented with the `X52` group?

Why is accurate coding within `X52` important for billing and clinical documentation?

How are initial, subsequent, and sequela encounters distinguished in this code group?

What clinical scenarios are intended to be captured by the `X52` diagnosis group?

References

When to Use

ICD-10-CM Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes represent a prolonged stay in a weightless environment?

What types of physiological effects are documented with the `X52` group?

Why is accurate coding within `X52` important for billing and clinical documentation?

How are initial, subsequent, and sequela encounters distinguished in this code group?

What clinical scenarios are intended to be captured by the `X52` diagnosis group?

References