ICD-10-CM Codes
V00-Y99 External causes of morbidity
X30-X39 Exposure to forces of nature
X39- Exposure to other forces of nature
2021 ICD-10-CM Diagnosis Code X39.01

2021 ICD-10-CM Diagnosis Code X39.01

Exposure to radon

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

X39.01 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2021 edition of ICD-10-CM X39.01 became effective on October 1, 2020.
This is the American ICD-10-CM version of X39.01 - other international versions of ICD-10 X39.01 may differ.

ICD-10-CM Coding Rules

X39.01 describes the circumstance causing an injury, not the nature of the injury.

The following code(s) above X39.01 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 X39.01:

V00-Y99
2021 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
X39.0
ICD-10-CM Diagnosis Code X39.0
Exposure to natural radiation
Type 1 Excludes
- contact with and (suspected) exposure to radon and other naturally occurring radiation (Z77.123)
- exposure to man-made radiation (W88-W90)
- exposure to sunlight (X32)
Exposure to natural radiation

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

External Cause Index entries containing back-references to X39.01:

Forces of nature X39.8
ICD-10-CM Diagnosis Code X39.8
Other exposure to forces of nature
- radiation (natural) X39.08
  ICD-10-CM Diagnosis Code X39.08
  Exposure to other natural radiation
  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  - radon X39.01
- radon X39.01
Radiation (exposure to)
- natural NEC X39.08
  ICD-10-CM Diagnosis Code X39.08
  Exposure to other natural radiation
  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  - radon X39.01

ICD-10-CM Codes Adjacent To X39.01

X37.9 Unspecified cataclysmic storm

X37.9XXA …… initial encounter

X37.9XXD …… subsequent encounter

X37.9XXS …… sequela

X38 Flood

X38.XXXA Flood, initial encounter

X38.XXXD Flood, subsequent encounter

X38.XXXS Flood, sequela

X39 Exposure to other forces of nature

X39.0 Exposure to natural radiation

X39.01 Exposure to radon

X39.01XA …… initial encounter

X39.01XD …… subsequent encounter

X39.01XS …… sequela

X39.08 Exposure to other natural radiation

X39.08XA …… initial encounter

X39.08XD …… subsequent encounter

X39.08XS …… sequela

X39.8 Other exposure to forces of nature

X39.8XXA …… initial encounter

X39.8XXD …… subsequent encounter

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

2021 ICD-10-CM Diagnosis Code X39.01

Exposure to radon

External causes of morbidity

Exposure to natural radiation

Other exposure to forces of nature

Exposure to other natural radiation

Exposure to other natural radiation