Alphabetic Index FY2027

J70.9

Respiratory conditions due to unspecified external agent

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

BillableComplete code, valid to report

J70.9 (also written J709) is a billable ICD-10-CM diagnosis code for respiratory conditions due to unspecified external agent. 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 5 entries. Its coding notes include a Code first instruction, a Use additional code instruction and 11 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code
  • (T51-T65) to identify the external agent

Use additional code

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

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)

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)

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. 5 entries