2027 ICD-10-CM Diagnosis Code M72.4Pseudosarcomatous fibromatosis

ICD-10-CM Codes›M00–M99›M70-M79›M72

ICD-10-CM M72.4
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M72.4 is a billable ICD-10-CM diagnosis code for pseudosarcomatous fibromatosis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 557 through 558. Coders also document this condition as fibrositis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified connective tissue disease.

Code Identity

ICD-10-CM Code
M72.4
Billable Status
Yes — Valid for Submission
Code Describes
Pseudosarcomatous fibromatosis
Short Description
Pseudosarcomatous fibromatosis
Same as the full description in the CMS dataset.
Parent Code
M72
Fibroblastic disorders

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM70-M79Other soft tissue disorders
CategoryM72Fibroblastic disorders
This CodeM72.4Pseudosarcomatous fibromatosis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Fibrositis
  • Fibrositis and nodular fasciitis
  • Intradermal nodular fasciitis
  • Nodular fasciitis
  • Parosteal nodular fasciitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M72.4: its own notes plus those printed at M72 and Chapter 13. 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.

  • Nodular fasciitis

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.

From M72 Fibroblastic disorders applies to 9 codes
  • retroperitoneal fibromatosis (D48.3)
From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • 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)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M72.4, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming M72.4: they are not reported together with it, unless the two conditions are unrelated.

  • M72.8 Other fibroblastic disorders
    nodular fasciitis (M72.4)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

CCSR MUS025
Other specified connective tissue disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

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

Convert M72.4 to ICD-9-CMHistory

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

ICD-9-CM
728.79 Fibromatoses NEC
Approximate The match is approximate rather than exact.

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 M72.4Overview

What is the ICD-10 code for pseudosarcomatous fibromatosis?

The ICD-10-CM code for pseudosarcomatous fibromatosis is M72.4 (sometimes written as M724). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M72.4 (Fibroblastic disorders) a billable code?

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

What MS-DRG does M72.4 group to?

When pseudosarcomatous fibromatosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8873 to 1.4883 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M72.4?

Under the General Equivalence Mappings, pseudosarcomatous fibromatosis converts to ICD-9-CM 728.79 (fibromatoses NEC). The mapping is approximate, so confirm the match fits the documentation.