Coding and coverage · ICD-10-CM

J84 › J84.8

J84.89 Other specified interstitial pulmonary diseases

BillableCMS-HCC V28: HCC 280Chapter 10
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Instructional notes

Chapter 10

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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)
Use additional codeAdd a second code for the full picture.
  • 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)
Notes
  • 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).

J84

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • drug-induced interstitial lung disorders (J70.2-J70.4)
  • interstitial emphysema (J98.2)
Excludes2Not included here: the patient may have both; report both when both are present.
  • lung diseases due to external agents (J60-J70)
Code also
  • , if applicable, associated condition

J84.8

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • exogenous lipoid pneumonia (J69.1)
  • unspecified lipoid pneumonia (J69.1)

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • cryptogenic organizing pneumonia (J84.116)
  • idiopathic non-specific interstitial pneumonitis (J84.113)
  • lipoid pneumonia, exogenous or unspecified (J69.1)
  • lymphoid interstitial pneumonia (J84.2)
Code firstSequence the underlying condition first.
  • , if applicable:
  • poisoning due to drug or toxin (T51-T65 with fifth or sixth character to indicate intent), for toxic pneumonopathy
  • underlying cause of pneumonopathy, if known
Use additional codeAdd a second code for the full picture.
  • code, for adverse effect, to identify drug (T36-T50 with fifth or sixth character 5), if drug-induced
Inclusion terms
  • Endogenous lipoid pneumonia
  • Interstitial pneumonitis
  • Non-specific interstitial pneumonitis NOS
  • Organizing pneumonia NOS

Chapter 10: Diseases of the respiratory system · J80-J84 Other respiratory diseases principally affecting the interstitium (J80-J84)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.