2027 ICD-10-CM Diagnosis Code M11.072Hydroxyapatite deposition disease, left ankle and foot

ICD-10-CM Codes›M00–M99›M05-M14›M11

ICD-10-CM M11.072
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M11.072 is a billable ICD-10-CM diagnosis code for hydroxyapatite deposition disease, left ankle and foot. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 553 through 554. Coders also document this condition as hydroxyapatite deposition disease of bilateral ankles. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Crystal arthropathies (excluding gout).

Code Identity

ICD-10-CM Code
M11.072
Billable Status
Yes — Valid for Submission
Code Describes
Hydroxyapatite deposition disease, left ankle and foot
Short Description
Hydroxyapatite deposition disease, left ankle and foot
Same as the full description in the CMS dataset.
Parent Code
M11.07
Hydroxyapatite deposition disease, ankle and foot

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM05-M14Inflammatory polyarthropathies
CategoryM11Other crystal arthropathies
This CodeM11.072Hydroxyapatite deposition disease, left ankle and foot

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hydroxyapatite deposition disease of bilateral ankles
  • Hydroxyapatite deposition disease of bilateral feet
  • Hydroxyapatite deposition disease of joint of ankle
  • Hydroxyapatite deposition disease of joint of foot
  • Hydroxyapatite deposition disease of left ankle
  • Hydroxyapatite deposition disease of left foot
  • Hydroxyapatite deposition disease of right ankle
  • Hydroxyapatite deposition disease of right foot

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M11.072: its own notes plus those printed at block M00-M25 and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block M00-M25 applies to 2,249 codes
  • Disorders affecting predominantly peripheral (limb) joints

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 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.

Clinical ClassificationClinical

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

CCSR MUS034
Crystal arthropathies (excluding gout)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Arthritis

If you feel pain and stiffness in your body or have trouble moving around, you might have arthritis. Any disorder that affects the joints is often called arthritis. Joints are places where two bones meet, such as your elbow or knee.

The full article covers:

  • What is arthritis?
  • What are the types of arthritis?
  • What are the symptoms of arthritis?
  • Who is more likely to get arthritis?
  • How is arthritis diagnosed?
  • What are the treatments for arthritis?

Read the full article at MedlinePlus

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

Convert M11.072 to ICD-9-CMHistory

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

ICD-9-CM
712.87 Cryst arthrop NEC-ankle
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 M11.072Overview

What is the ICD-10 code for hydroxyapatite deposition disease, left ankle and foot?

The ICD-10-CM code for hydroxyapatite deposition disease, left ankle and foot is M11.072 (sometimes written as M11072). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M11.072 (Hydroxyapatite deposition disease, ankle and foot) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hydroxyapatite deposition disease, left ankle and foot on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M11.072 group to?

When hydroxyapatite deposition disease, left ankle and foot is the principal diagnosis on an inpatient stay, it groups to MS-DRG 554, 553, with relative weights from 0.8328 to 1.2492 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M11.072?

Under the General Equivalence Mappings, hydroxyapatite deposition disease, left ankle and foot converts to ICD-9-CM 712.87 (cryst arthrop NEC-ankle). The mapping is approximate, so confirm the match fits the documentation.