2027 ICD-10-CM Diagnosis Code M72.21Plantar fascial fibromatosis, right foot

ICD-10-CM Codes›M00–M99›M70-M79›M72

ICD-10-CM M72.21
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M72.21 is a billable ICD-10-CM diagnosis code for plantar fascial fibromatosis, right foot. 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 bilateral fibromatosis of plantar fascia of feet.

Code Identity

ICD-10-CM Code
M72.21
Billable Status
Yes — Valid for Submission
Code Describes
Plantar fascial fibromatosis, right foot
Short Description
Plantar fascial fibromatosis, right foot
Same as the full description in the CMS dataset.
Parent Code
M72.2
Plantar fascial fibromatosis

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM70-M79Other soft tissue disorders
CategoryM72Fibroblastic disorders
This CodeM72.21Plantar fascial fibromatosis, right foot

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral fibromatosis of plantar fascia of feet
  • Fibromatosis of plantar fascia of left foot
  • Fibromatosis of plantar fascia of right foot
  • Plantar fascial fibromatosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M72.21: 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.

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.

Code History & ChangesHistory

New Code M72.21 was added to the ICD-10-CM code set for FY 2027, effective October 1, 2026.

Replacement M72.21 replaces the following previously assigned code(s):

  • M72.2 - Plantar fascial fibromatosis
FY 2027AddedAdded to the ICD-10-CM code setEffective October 1, 2026.
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M72.21Overview

What is the ICD-10 code for plantar fascial fibromatosis, right foot?

The ICD-10-CM code for plantar fascial fibromatosis, right foot is M72.21 (sometimes written as M7221). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M72.21 (Plantar fascial fibromatosis) a billable code?

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

What MS-DRG does M72.21 group to?

When plantar fascial fibromatosis, right foot 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.