ICD-10-CM 2027 diagnosis code
J70.1Chronic and other pulmonary manifestations due to radiation
J70.1 is a valid, billable ICD-10-CM code for chronic and other pulmonary manifestations due to radiation. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About J70.1
J70.1 is the ICD-10-CM diagnosis code for chronic and other pulmonary manifestations due to radiation. It belongs to category J70 (respiratory conditions due to other external agents), block J60-J70 (lung diseases due to external agents) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within J70, choose J70.1 (Chronic and other pulmonary manifestations due to radiation) only when documentation doesn't support a more specific option: acute pulmonary manifestations due to radiation (J70.0), acute drug-induced interstitial lung disorders (J70.2), chronic drug-induced interstitial lung disorders (J70.3), drug-induced interstitial lung disorders, unspecified (J70.4), respiratory conditions due to smoke inhalation (J70.5), respiratory conditions due to other specified external agents (J70.8) and respiratory conditions due to unspecified external agent (J70.9).
Use an additional code (W88-W90, X39.0-) to identify the external cause.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 196 (Interstitial Lung Disease with MCC, relative weight 1.8336), DRG 197 (Interstitial Lung Disease with CC, relative weight 0.9492) and DRG 198 (Interstitial Lung Disease without CC/MCC, relative weight 0.7259), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 508.1 (chronic and other pulmonary manifestations due to radiation).
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to J70.1.
Broader instructions also apply from J60-J70 Lung diseases due to external agents and Chapter 10: Diseases of the respiratory system.
Alphabetic index entries
7 entriesTerms in the official ICD-10-CM index that lead to J70.1.
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › chronic › due to › radiation
- Disease, diseased › respiratory (tract) › chronic NOS › due to › radiation
- Edema, edematous (infectious) (pitting) (toxic) › lung › chronic › due to › radiation
- Effect, adverse › radiation (diagnostic) (infrared) (natural source) (therapeutic) (ultraviolet) (X-ray) NOS › fibrosis of lung
- Effect, adverse › radiation (diagnostic) (infrared) (natural source) (therapeutic) (ultraviolet) (X-ray) NOS › pulmonary manifestations › chronic
- Fibrosis, fibrotic › lung (atrophic) (chronic) (confluent) (massive) (perialveolar) (peribronchial) › following radiation
- Inflammation, inflamed, inflammatory (with exudation) › respiratory, upper › due to › radiation
Codes whose notes reference J70.1
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 04 · Diseases and Disorders of the Respiratory System
ICD-9-CM equivalent
Converter →- 508.1Chronic and other pulmonary manifestations due to radiationexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about J70.1
Is J70.1 billable?
- Yes. J70.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J70.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J70.1 as a principal diagnosis.
Is J70.1 a CC or MCC?
- J70.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does J70.1 group to?
- J70.1 is used in the MS-DRG v44.0 logic for MS-DRG 196 (Interstitial Lung Disease with MCC), MS-DRG 197 (Interstitial Lung Disease with CC) and MS-DRG 198 (Interstitial Lung Disease without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for J70.1?
- The CMS General Equivalence Mappings map J70.1 to ICD-9-CM 508.1.