2027 ICD-10-CM Diagnosis Code J98.6Disorders of diaphragm

ICD-10-CM Codes›J00–J99›J96-J99›J98

ICD-10-CM J98.6
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

J98.6 is a billable ICD-10-CM diagnosis code for disorders of diaphragm. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 205 through 206. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified lower respiratory disease.

Code Identity

ICD-10-CM Code
J98.6
Billable Status
Yes — Valid for Submission
Code Describes
Disorders of diaphragm
Short Description
Disorders of diaphragm
Same as the full description in the CMS dataset.
Parent Code
Other respiratory disorders

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ96-J99Other diseases of the respiratory system
CategoryJ98Other respiratory disorders
This CodeJ98.6Disorders of diaphragm

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal diaphragmatic movement
  • Complication of respiratory therapy procedure
  • Diaphragmatic cyst
  • Diaphragmatic paresis
  • Diaphragmatic tic
  • Diaphragmitis
  • Disorder of diaphragm
  • Downward displacement of diaphragm
  • Downward displacement of left half of diaphragm
  • Downward displacement of right half of diaphragm
  • Finding of movement of thorax
  • Hedblom's syndrome
  • Lian-Siguer-Welti syndrome
  • Paralysis of diaphragm
  • Perforation of diaphragm
  • Relaxation of diaphragm
  • Ventilator-induced diaphragmatic dysfunction

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to J98.6: its own notes plus those printed at J98 and Chapter 10. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Diaphragmatitis
  • Paralysis of diaphragm
  • Relaxation of diaphragm

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On J98.6 itself
  • congenital malformation of diaphragm NEC (Q79.1)
  • congenital diaphragmatic hernia (Q79.0)
From J98 Other respiratory disorders applies to 12 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On J98.6 itself
  • diaphragmatic hernia (K44.-)
From J98 Other respiratory disorders applies to 12 codes
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • 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 Code

Add a second code, after this one, to fully describe the condition.

From J98 Other respiratory disorders applies to 12 codes
  • code 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)
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • 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

General instructions on how these codes are used.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • 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).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR RSP016
Other specified and unspecified lower respiratory disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Lung Diseases

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert J98.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
519.4 Disorders of diaphragm
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About J98.6Overview

What is the ICD-10 code for disorders of diaphragm?

The ICD-10-CM code for disorders of diaphragm is J98.6 (sometimes written as J986). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is J98.6 (Other respiratory disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report disorders of diaphragm on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does J98.6 group to?

When disorders of diaphragm is the principal diagnosis on an inpatient stay, it groups to MS-DRG 206, 205, with relative weights from 0.9255 to 1.8244 depending on complications. Higher weights mean higher Medicare reimbursement.

Can J98.6 be reported with Q79.1?

Not as a rule. The Excludes1 note on J98.6 lists "congenital malformation of diaphragm NEC (Q79.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does J98.6 need an additional code?

When the condition applies, yes. The Use Additional Code note at J98, which applies to J98.6, reads: code 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.-); and 1 more listed in the Instructional Notes section. The additional code is reported after J98.6.