2027 ICD-10-CM Diagnosis Code R93.6Abnormal findings on diagnostic imaging of limbs

ICD-10-CM Codes›R00–R99›R90-R94›R93

ICD-10-CM R93.6
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

R93.6 is a billable ICD-10-CM diagnosis code for abnormal findings on diagnostic imaging of limbs. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 564 through 566. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.

Code Identity

ICD-10-CM Code
R93.6
Billable Status
Yes — Valid for Submission
Code Describes
Abnormal findings on diagnostic imaging of limbs
Short Description
Abnormal findings on diagnostic imaging of limbs
Same as the full description in the CMS dataset.
Parent Code
R93
Abnormal findings on diagnostic imaging of other body structures

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR90-R94Abnormal findings on diagnostic imaging and in function studies, without diagnosis
CategoryR93Abnormal findings on diagnostic imaging of other body structures
This CodeR93.6Abnormal findings on diagnostic imaging of limbs

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Angiography of artery of lower limb abnormal
  • Arthrography abnormal
  • Doppler ultrasonography of vascular structure of lower limb abnormal
  • Doppler ultrasonography of vascular structure of upper limb abnormal
  • Doppler ultrasound abnormal
  • Imaging of limb abnormal
  • Imaging of lower limb abnormal
  • Imaging of upper limb abnormal
  • Knee arthrography abnormal
  • Patchy sclerosis of bone of hand
  • Patchy sclerosis of distal phalanx of fifth toe
  • Patchy sclerosis of distal phalanx of finger
  • Patchy sclerosis of distal phalanx of foot
  • Patchy sclerosis of distal phalanx of fourth toe
  • Patchy sclerosis of distal phalanx of great toe
  • Patchy sclerosis of distal phalanx of index finger
  • Patchy sclerosis of distal phalanx of little finger
  • Patchy sclerosis of distal phalanx of middle finger
  • Patchy sclerosis of distal phalanx of ring finger
  • Patchy sclerosis of distal phalanx of second toe
  • Patchy sclerosis of distal phalanx of third toe
  • Patchy sclerosis of distal phalanx of thumb
  • Patchy sclerosis of first metacarpal
  • Patchy sclerosis of first metatarsal bone
  • Patchy sclerosis of middle phalanx of fifth toe
  • Patchy sclerosis of middle phalanx of finger
  • Patchy sclerosis of middle phalanx of foot
  • Patchy sclerosis of middle phalanx of fourth toe
  • Patchy sclerosis of middle phalanx of index finger
  • Patchy sclerosis of middle phalanx of little finger
  • Patchy sclerosis of middle phalanx of middle finger
  • Patchy sclerosis of middle phalanx of ring finger
  • Patchy sclerosis of middle phalanx of second toe
  • Patchy sclerosis of middle phalanx of third toe
  • Patchy sclerosis of phalanx of fifth toe
  • Patchy sclerosis of phalanx of finger
  • Patchy sclerosis of phalanx of foot
  • Patchy sclerosis of phalanx of fourth toe
  • Patchy sclerosis of phalanx of great toe
  • Patchy sclerosis of phalanx of index finger
  • Patchy sclerosis of phalanx of little finger
  • Patchy sclerosis of phalanx of middle finger
  • Patchy sclerosis of phalanx of ring finger
  • Patchy sclerosis of phalanx of second toe
  • Patchy sclerosis of phalanx of third toe
  • Patchy sclerosis of phalanx of thumb
  • Patchy sclerosis of proximal phalanx of fifth toe
  • Patchy sclerosis of proximal phalanx of finger
  • Patchy sclerosis of proximal phalanx of foot
  • Patchy sclerosis of proximal phalanx of fourth toe
  • Patchy sclerosis of proximal phalanx of great toe
  • Patchy sclerosis of proximal phalanx of index finger
  • Patchy sclerosis of proximal phalanx of little finger
  • Patchy sclerosis of proximal phalanx of middle finger
  • Patchy sclerosis of proximal phalanx of ring finger
  • Patchy sclerosis of proximal phalanx of second toe
  • Patchy sclerosis of proximal phalanx of third toe
  • Patchy sclerosis of proximal phalanx of thumb
  • Patchy sclerosis of shaft of radius
  • Plain X-ray of ankle joint abnormal
  • Plain X-ray of bone of lower leg abnormal
  • Plain X-ray of calcaneum abnormal
  • Plain X-ray of carpus abnormal
  • Plain X-ray of chest abnormal
  • Plain X-ray of elbow abnormal
  • Plain X-ray of femur abnormal
  • Plain X-ray of fibula abnormal
  • Plain X-ray of finger abnormal
  • Plain X-ray of foot abnormal
  • Plain X-ray of forearm abnormal
  • Plain X-ray of hand abnormal
  • Plain X-ray of hip joint abnormal
  • Plain X-ray of humerus abnormal
  • Plain X-ray of humerus and bone of shoulder girdle abnormal
  • Plain X-ray of knee abnormal
  • Plain X-ray of lower leg abnormal
  • Plain X-ray of lower limb abnormal
  • Plain X-ray of patella abnormal
  • Plain X-ray of radius abnormal
  • Plain X-ray of radius and ulna abnormal
  • Plain X-ray of scaphoid abnormal
  • Plain X-ray of shoulder joint abnormal
  • Plain X-ray of soft tissue abnormal
  • Plain X-ray of soft tissue of limb abnormal
  • Plain X-ray of thumb abnormal
  • Plain X-ray of tibia abnormal
  • Plain X-ray of toe abnormal
  • Plain X-ray of ulna abnormal
  • Plain X-ray of wrist abnormal
  • Punctate calcification of distal ulna epiphysis
  • Punctate calcification of epiphysis of calcaneum
  • Punctate calcification of epiphysis of distal phalanx of fifth toe
  • Punctate calcification of epiphysis of distal phalanx of fourth toe
  • Punctate calcification of epiphysis of distal phalanx of great toe
  • Punctate calcification of epiphysis of distal phalanx of hand
  • Punctate calcification of epiphysis of distal phalanx of second toe
  • Punctate calcification of epiphysis of distal phalanx of third toe
  • Punctate calcification of epiphysis of distal phalanx of thumb
  • Punctate calcification of epiphysis of first metacarpal bone
  • Punctate calcification of epiphysis of first metatarsal bone
  • Punctate calcification of epiphysis of humerus
  • Punctate calcification of epiphysis of metacarpal bone
  • Punctate calcification of epiphysis of middle phalanx of fifth toe
  • Punctate calcification of epiphysis of middle phalanx of finger
  • Punctate calcification of epiphysis of middle phalanx of fourth toe
  • Punctate calcification of epiphysis of middle phalanx of second toe
  • Punctate calcification of epiphysis of middle phalanx of third toe
  • Punctate calcification of epiphysis of phalanx of fifth toe
  • Punctate calcification of epiphysis of phalanx of finger
  • Punctate calcification of epiphysis of phalanx of fourth toe
  • Punctate calcification of epiphysis of phalanx of great toe
  • Punctate calcification of epiphysis of phalanx of index finger
  • Punctate calcification of epiphysis of phalanx of little finger
  • Punctate calcification of epiphysis of phalanx of middle finger
  • Punctate calcification of epiphysis of phalanx of ring finger
  • Punctate calcification of epiphysis of phalanx of second toe
  • Punctate calcification of epiphysis of phalanx of third toe
  • Punctate calcification of epiphysis of phalanx of thumb
  • Punctate calcification of epiphysis of proximal phalanx of fifth toe
  • Punctate calcification of epiphysis of proximal phalanx of fourth toe
  • Punctate calcification of epiphysis of proximal phalanx of great toe
  • Punctate calcification of epiphysis of proximal phalanx of hand
  • Punctate calcification of epiphysis of proximal phalanx of second toe
  • Punctate calcification of epiphysis of proximal phalanx of third toe
  • Punctate calcification of epiphysis of proximal phalanx of thumb
  • Punctate calcification of phalanx of toe
  • Punctate calcification of tarsal bone
  • Sclerosis of epiphysis of distal phalanx of fifth toe with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of fourth toe with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of great toe with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of hand with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of index finger with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of little finger with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of middle finger with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of ring finger with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of second toe with increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of third toe increased radiopacity
  • Sclerosis of epiphysis of distal phalanx of thumb with increased radiopacity
  • Sclerosis of epiphysis of first metacarpal bone with increased radiopacity
  • Sclerosis of epiphysis of first metatarsal bone with increased radiopacity
  • Sclerosis of epiphysis of metacarpal bone with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of fifth toe with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of finger with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of fourth toe with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of index finger with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of little finger with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of middle finger with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of ring finger with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of second toe with increased radiopacity
  • Sclerosis of epiphysis of middle phalanx of third toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of fifth toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of fourth toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of great toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of hand with increased radiopacity
  • Sclerosis of epiphysis of phalanx of index finger with increased radiopacity
  • Sclerosis of epiphysis of phalanx of little finger with increased radiopacity
  • Sclerosis of epiphysis of phalanx of middle finger with increased radiopacity
  • Sclerosis of epiphysis of phalanx of ring finger increased radiopacity
  • Sclerosis of epiphysis of phalanx of second toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of third toe with increased radiopacity
  • Sclerosis of epiphysis of phalanx of thumb with increased radiopacity
  • Sclerosis of epiphysis of phalanx of toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of fifth toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of fourth toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of great toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of hand with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of index finger with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of little finger with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of middle finger with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of ring finger with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of second toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of third toe with increased radiopacity
  • Sclerosis of epiphysis of proximal phalanx of thumb with increased radiopacity

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to R93.6: its own notes plus those printed at block R90-R94 and Chapter 18. 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 R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis applies to 64 codes
  • nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
  • nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
  • nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]
  • nonspecific abnormal findings on diagnostic imaging by thermography
  • nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]
  • nonspecific abnormal findings on diagnostic imaging by X-ray examination

Excludes1

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

From Block R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis applies to 64 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index

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 R93.6 itself
  • abnormal finding in skin and subcutaneous tissue (R93.8-)
From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Notes

General instructions on how these codes are used.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
  • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
  • The conditions and signs or symptoms included in categories R00-R94 consist of:
  • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
  • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
  • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
  • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
  • (e) cases in which a more precise diagnosis was not available for any other reason;
  • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name R93.6, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming R93.6: they are not reported together with it, unless the two conditions are unrelated.

  • R22 Localized swelling, mass and lump of skin and subcutaneous tissue
    abnormal findings on diagnostic imaging (R90-R93) names R90-R93, which includes this code

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 SYM017
Abnormal findings without diagnosis
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert R93.6 to ICD-9-CMHistory

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

ICD-9-CM
793.7 Nonsp abn find-ms system
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 R93.6Overview

What is the ICD-10 code for abnormal findings on diagnostic imaging of limbs?

The ICD-10-CM code for abnormal findings on diagnostic imaging of limbs is R93.6 (sometimes written as R936). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is R93.6 a billable code?

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

What MS-DRG does R93.6 group to?

When abnormal findings on diagnostic imaging of limbs is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 566, 565, with relative weights from 0.7374 to 1.4909 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R93.6 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the abnormal findings on diagnostic imaging of limbs is established, that condition takes the principal position instead.

Can R93.6 be reported with a code from O28?

Not as a rule. The Excludes1 note at block R90-R94, which applies to R93.6, lists "abnormal findings on antenatal screening of mother (O28.-)". 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).