Alphabetic Index FY2027

J70.3

Chronic drug-induced interstitial lung disorders

FY2027Chapter 10: Diseases of the respiratory system/J60–J70 Lung diseases due to external agents

BillableComplete code, valid to report
Care settingsHome Health Primary · MMTA - Respiratory

J70.3 (also written J703) is a billable ICD-10-CM diagnosis code for chronic drug-induced interstitial lung disorders. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 8 codes in category J70 (Respiratory conditions due to other external agents). The Alphabetic Index lists it under 2 entries. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 11 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

This code
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Also from chapter/block level (7 notes)
Inherited from Chapter 10 Diseases of the respiratory system
  • code, where applicable, to identify:
    • exposure to environmental tobacco smoke (Z77.22)
    • exposure to tobacco smoke in the perinatal period (P96.81)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • interstitial pneumonia NOS (J84.9)
  • lymphoid interstitial pneumonia (J84.2)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (11 notes)
Inherited from J60–J70 Lung diseases due to external agents
  • asthma (J45.-)
  • malignant neoplasm of bronchus and lung (C34.-)
Inherited from Chapter 10 Diseases of the respiratory system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Respiratory clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 10 Diseases of the respiratory system
  • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 2 entries