J85 ICD-10-CM Code: Abscess of lung and mediastinum
J85 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Diseases of the respiratory system (J00-J99) / Suppurative and necrotic conditions of the lower respiratory tract (J85-J86)
J85
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceAbscess of lung and mediastinum
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for J85. Check the code and parent instructions in the Code Book.
Excludes 2
Official- certain conditions originating in the perinatal period (P04-P96)Inherited from J00-J99
- certain infectious and parasitic diseases (A00-B99)Inherited from J00-J99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from J00-J99
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Inherited from J00-J99
- endocrine, nutritional and metabolic diseases (E00-E88)Inherited from J00-J99
- injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from J00-J99
- neoplasms (C00-D49)Inherited from J00-J99
- smoke inhalation (T59.81-)Inherited from J00-J99
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from J00-J99
Related Codes
Includes
OfficialNo Includes notes are included in this display for J85. Check the code and parent instructions in the Code Book.
Excludes 1
OfficialNo Excludes 1 notes are included in this display for J85. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for J85. Check the code and parent instructions in the Code Book.
Use Additional
Official- code (B95-B97) to identify infectious agent.
- code, where applicable, to identify:Inherited from J00-J99
- exposure to environmental tobacco smoke (Z77.22)Inherited from J00-J99
- exposure to tobacco smoke in the perinatal period (P96.81)Inherited from J00-J99
- history of tobacco dependence (Z87.891)Inherited from J00-J99
- occupational exposure to environmental tobacco smoke (Z57.31)Inherited from J00-J99
- tobacco dependence (F17.-)Inherited from J00-J99
- tobacco use (Z72.0)Inherited from J00-J99
Code Also
OfficialNo Code Also instructions are included in this display for J85. Check the code and parent instructions in the Code Book.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- J85
- Description
- Abscess of lung and mediastinum
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
J85 is the ICD-10-CM diagnosis code for abscess of lung and mediastinum. J85 sits in the ICD-10-CM chapter for diseases of the respiratory system (j00-j99), within the section covering suppurative and necrotic conditions of the lower respiratory tract (j85-j86).
Header codes like J85 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for J85 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.