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ICD-10-CM 2027 diagnosis code

D38.2Neoplasm of uncertain behavior of pleura

✓ Billable / specific

D38.2 is a valid, billable ICD-10-CM code for neoplasm of uncertain behavior of pleura. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D38.2

D38.2 is the ICD-10-CM diagnosis code for neoplasm of uncertain behavior of pleura. It belongs to category D38 (neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs), block D37-D48 (neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within D38 (neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs), D38.2 is specifically for neoplasm of uncertain behavior of pleura. Related codes cover larynx (D38.0), trachea, bronchus and lung (D38.1), mediastinum (D38.3), thymus (D38.4), other respiratory organs (D38.5) and respiratory organ, unspecified (D38.6).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 180 (Respiratory Neoplasms with MCC, relative weight 1.7806), DRG 181 (Respiratory Neoplasms with CC, relative weight 1.0936) and DRG 182 (Respiratory Neoplasms without CC/MCC, relative weight 0.7439), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 235.8 (neoplasm of uncertain behavior of pleura, thymus, and mediastinum).

Notes that apply from higher levels

Instructions written at a parent level also apply to D38.2.

› From D38 Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs
Excludes1
  • neoplasm of uncertain behavior of heart (D48.7)

Broader instructions also apply from D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes and Chapter 2: Neoplasms.

Table of Drugs & Neoplasms entries

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 235.8Neoplasm of uncertain behavior of pleura, thymus, and mediastinumapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about D38.2

Is D38.2 billable?

Yes. D38.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can D38.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict D38.2 as a principal diagnosis.

Is D38.2 a CC or MCC?

No. D38.2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does D38.2 group to?

D38.2 is used in the MS-DRG v44.0 logic for MS-DRG 180 (Respiratory Neoplasms with MCC), MS-DRG 181 (Respiratory Neoplasms with CC) and MS-DRG 182 (Respiratory Neoplasms without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for D38.2?

The CMS General Equivalence Mappings map D38.2 to ICD-9-CM 235.8.