ICD-10-CM Codes
V00-Y99
X30-X39
X30-
2023 ICD-10-CM Diagnosis Code X30

2023 ICD-10-CM Diagnosis Code X30

Exposure to excessive natural heat

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

X30 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM X30 became effective on October 1, 2022.
This is the American ICD-10-CM version of X30 - other international versions of ICD-10 X30 may differ.

ICD-10-CM Coding Rules

X30 describes the circumstance causing an injury, not the nature of the injury.

Applicable To

Exposure to excessive heat as the cause of sunstroke
Exposure to heat NOS

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as X30. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

excessive heat of man-made origin (
ICD-10-CM Diagnosis Code W92
Exposure to excessive heat of man-made origin
W92
)
exposure to man-made radiation (
ICD-10-CM Diagnosis Code W89
Exposure to man-made visible and ultraviolet light
Includes
- exposure to welding light (arc)
Type 2 Excludes
- exposure to sunlight (X32)
W89
)
exposure to sunlight (
ICD-10-CM Diagnosis Code X32
Exposure to sunlight
Type 1 Excludes
- man-made radiation (tanning bed) (W89)
Type 2 Excludes
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
X32
)
exposure to tanning bed (
ICD-10-CM Diagnosis Code W89
Exposure to man-made visible and ultraviolet light
Includes
- exposure to welding light (arc)
Type 2 Excludes
- exposure to sunlight (X32)
W89
)

The following code(s) above X30 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to X30:

V00-Y99
2023 ICD-10-CM Range V00-Y99
External causes of morbidity
Note
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.
External causes of morbidity

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to X30:

Type 1 Excludes: V93.2

ICD-10-CM Diagnosis Code V93.2
Heat exposure on board watercraft
Type 1 Excludes
- exposure to man-made heat not aboard watercraft (W92)
- exposure to natural heat while on board watercraft (X30)
- exposure to sunlight while on board watercraft (X32)
Type 2 Excludes
- burn due to fire on board watercraft (V93.0-)

External Cause Index entries containing back-references to X30:

Effect(s) (adverse)
- insolation X30
Exposure (to) X58
ICD-10-CM Diagnosis Code X58
Exposure to other specified factors
Applicable To
Accident NOS
Exposure NOS
- excessive
  - heat (natural) X30
Forces of nature X39.8
ICD-10-CM Diagnosis Code X39.8
Other exposure to forces of nature
- heat X30 (natural)
Heat (effects of) (excessive) X30
- due to
  - weather X30 (conditions)
Hot
- weather, effects X30
Ictus
- solaris X30
Insolation, effects X30
Overexposure (accidental) (to)
- heat X30 - see also Heat

ICD-10-CM Codes Adjacent To X30

X17.XXXD Contact with hot engines, machinery and tools, subsequent encounter

X17.XXXS Contact with hot engines, machinery and tools, sequela

X18 Contact with other hot metals

X18.XXXA Contact with other hot metals, initial encounter

X18.XXXD Contact with other hot metals, subsequent encounter

X18.XXXS Contact with other hot metals, sequela

X19 Contact with other heat and hot substances

X19.XXXA Contact with other heat and hot substances, initial encounter

X19.XXXD Contact with other heat and hot substances, subsequent encounter

X19.XXXS Contact with other heat and hot substances, sequela

X30 Exposure to excessive natural heat

X30.XXXA Exposure to excessive natural heat, initial encounter

X30.XXXD Exposure to excessive natural heat, subsequent encounter

X30.XXXS Exposure to excessive natural heat, sequela

X31 Exposure to excessive natural cold

X31.XXXA Exposure to excessive natural cold, initial encounter

X31.XXXD Exposure to excessive natural cold, subsequent encounter

X31.XXXS Exposure to excessive natural cold, sequela

X32 Exposure to sunlight

X32.XXXA Exposure to sunlight, initial encounter

X32.XXXD Exposure to sunlight, subsequent encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code X30

Exposure to excessive natural heat

Exposure to excessive heat of man-made origin

Exposure to man-made visible and ultraviolet light

Exposure to sunlight

Exposure to man-made visible and ultraviolet light

External causes of morbidity

Heat exposure on board watercraft

Exposure to other specified factors

Other exposure to forces of nature