2026 ICD-10-CM Diagnosis Code J70.1Chronic and other pulmonary manifestations due to radiation

ICD-10-CM Codes›J00–J99›J60-J70›J70

ICD-10-CM J70.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

J70.1 is a billable ICD-10-CM diagnosis code for chronic and other pulmonary manifestations due to radiation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 196 through 198. Coders also document this condition as chronic pulmonary radiation disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Lung disease due to external agents.

Code Identity

ICD-10-CM Code
J70.1
Billable Status
Yes — Valid for Submission
Code Describes
Chronic and other pulmonary manifestations due to radiation
Short Description
Chronic and other pulmonary manifestations due to radiation
Same as the full description in the CMS dataset.
Parent Code
J70
Respiratory conditions due to other external agents

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ60-J70Lung diseases due to external agents
CategoryJ70Respiratory conditions due to other external agents
This CodeJ70.1Chronic and other pulmonary manifestations due to radiation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic pulmonary radiation disease
  • Fibrosis of lung caused by radiation
  • Laryngitis following radiation therapy
  • Pulmonary fibrosis due to and following radiotherapy

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Fibrosis of lung following radiation

Use Additional Code

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.

    • 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

Clinical ClassificationClinical

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

CCSR RSP013
Lung disease due to external agents
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Lung Diseases

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert J70.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
508.1 Chr pul manif d/t radiat
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About J70.1Overview

Is J70.1 (Respiratory conditions due to other external agents) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chronic and other pulmonary manifestations due to radiation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does J70.1 group to?

When chronic and other pulmonary manifestations due to radiation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 196, 197, 198, with relative weights from 0.7162 to 1.8872 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of J70.1?

Under the General Equivalence Mappings, chronic and other pulmonary manifestations due to radiation converts to ICD-9-CM 508.1 (chr pul manif d/t radiat). The mapping is a direct match.

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.