Profiling by Care Setting Information Gain in the ... hobbs - Final... · Profiling by Care Setting...

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Profiling by Care Setting Information Gain in the Transition from ICD-9-CM to ICD-10-CM October 3, 2017 Sylvia Hobbs, MPH, Anne Medinus, PhD, Yaying Fu, BS, Kathy Hines A Combined All Payer Claims Data and Administrative Case Mix Approach Review of the Coding Increases Magnitude of Changes in Unspecified Codes APCD and Case Mix care setting examples pre- and post- ICD-10-CM implementation General Equivalency Mapping

Transcript of Profiling by Care Setting Information Gain in the ... hobbs - Final... · Profiling by Care Setting...

Profiling by Care Setting Information Gain in

the Transition from ICD-9-CM to ICD-10-CM

October 3, 2017

Sylvia Hobbs, MPH, Anne Medinus, PhD, Yaying Fu, BS, Kathy Hines

A Combined All Payer Claims Data and

Administrative Case Mix Approach

• Review of the Coding Increases• Magnitude of Changes in Unspecified Codes• APCD and Case Mix care setting examples pre- and

post- ICD-10-CM implementation• General Equivalency Mapping

1,638

1,219

432

148

609

1,776

711

452

840

280

1,037

495

1,480

351

501

472

3,557

1,465

1,358

Infectious and parasitic diseases (001-139)

Neoplasms (140-239)

Endocrine, nutrional and metabolic…

Diseases of the blood and blood-forming…

Mental disorders (290-319)

Diseases of the nervous system and…

Diseases of the eye and adnexa

Diseases of the ear and mastoid process

Diseases of the circulatory system (390-…

Diseases of the respiratory system (460-…

Diseases of the digestive system (520-579)

Diseases of the skin and subcutaneous…

Diseases of the musculoskeletal system…

Diseases of the genitourinary system…

Complications of pregnancy, childbirth,…

Certain conditions originating in the…

Congenital anomalies (740-759)

Symptoms, signs, and ill-defined…

Injury and poisoning (800-999)

Supplementary classification of external…

Supplementary classification of factors…

18,821 ICD-9-CM Codes

1,293

2,039

1,171

309

940

815

3,252

875

1,674

443

990

957

8,450

792

2,759

506

966

878

53,659

9,677

1,597

Certain infectious and parasitic diseases (A00-B99)

Neoplasms (C00-D49)

Endocrine, nutritional and metabolic diseases…

Diseases of the blood and blood-forming organs…

Mental, Behavioral and Neurodevelopmental…

Diseases of the nervous system (G00-G99)

Diseases of the eye and adnexa (H00-H59)

Diseases of the ear and mastoid process (H60-…

Diseases of the circulatory system (I00-I99)

Diseases of the respiratory system (J00-J99)

Diseases of the digestive system (K00-K95)

Diseases of the skin and subcutaneous tissue…

Diseases of the musculoskeletal system and…

Diseases of the genitourinary system (N00-N99)

Pregnancy, childbirth and the puerperium (O00-…

Certain conditions originating in the perinatal…

Congenital malformations, deformations and…

Symptoms, signs and abnormal clinical and…

Injury, poisoning and certain other consequences…

External causes of morbidity (V00-Y99)

Factors influencing health status and contact…

94,042 ICD-10-CM Codes

New Major Diagnosis Categories

Comparison of ICD-9-CM to ICD-10-CM Increase in Diagnosis

Codes by ICD-10-CM Major Diagnosis Chapters

59% of

ICD-10-CM codes are in the Injury/ poisoning chapter

“Codes titled “unspecified” are for use when the information in the medical record is insufficient to assign a more specific code. For those categories for which an unspecified code is not provided, the “other specified” code may represent both other and unspecified.”*

CMS Definition

* ICD-10-CM Official Guidelines for Coding and Reporting FY 2016. Department of Health and Human Services, Center for

Medicare & Medicaid Services, https://www.cms.gov/Medicare/Coding/ICD10/Downloads/2016-ICD-10-CM-Guidelines.pdf

15%

9%

22%

8%

14%

11%

23%

11%

33%

13%

18%

9%

17%

13%

19%

14%

20%

20%

18%

0%10%20%30%40%

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

9%

21%

36%

12%

15%

15%

29%

16%

28%

24%

19%

15%

27%

31%

29%

15%

31%

16%

12%

28%

16%

0% 10% 20% 30% 40%

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

Percent Unspecified Diagnosis Codes18% of ICD-9-CM Codes 30% of ICD-10-CM Codes

MDC ICD-10-CM Diagnosis Major Group (Abbreviated)

1 Infectious & parasitic (Lower Unspecified)

2 Neoplasms

3 Blood & blood-forming organs & immune disorders (Lower Unspecified)

4 Endocrine, nutritional & metabolic

5 Mental, behavioral & neurodevelopmental

6 Nervous system

7 Eye & adnexa

8 Ear & mastoid

9 Circulatory

10 Respiratory

11 Digestive

12 Skin & subcutaneous

13 Musculoskeletal & connective tissue

14 Genitourinary

15 Pregnancy, childbirth & puerperium

16 Conditions originating in perinatal period

17 Congenital malformations, deformations & chromosomal abnormalities

18 Symptoms, signs & abnormal clinical & lab findings

19 Injury, poisoning & consequences of external causes

20 External causes of morbidity

21 Factors influencing health status (Lower Unspecified)

New Major Diagnosis Categories

ICD-10-CM’s new anatomic and physiologic specificity (e.g.

Glasgow Coma Score, blood types, drug underdosing and

laterality) was paralleled by an increase in unspecified codes in

all Major Diagnosis Categories except for Three

Massachusetts Case Mix Inpatient Acute Care Hospital Setting Top 10 Unspecified Poisoning Diagnoses Comparing ICD-9-CM to ICD-10-CM

Top 10 ICD-10-CM Unspecified Poisoning Diagnoses

October 2015 to September 2016Top 10 ICD-9-CM Unspecified Poisoning Diagnoses

January 2014 to September 2015

Rank ICD-9-CM Description

1 9663 Poisoning by other and unspecified anticonvulsants

2 96500 Poisoning by opium (alkaloids), unspecified

3 9779

Poisoning by unspecified drug or medicinal

substance

4 E9509

Suicide and self-inflicted poisoning by other and

unspecified solid and liquid substances

5 0059 Unspecified food poisoning

6 9729

Poisoning by other and unspecified agents primarily

affecting the cardiovascular system

7 9679 Poisoning by unspecified sedative or hypnotic

8 E9809

Poisoning by other and unspecified solid and liquid

substances, undetermined whether accidentally or

purposely inflicted

9 9659 Poisoning by unspecified analgesic and antipyretic

10 96900 Poisoning by antidepressant, unspecified

Rank ICD-10-CM Description

1 T50901A

Poisoning by unspecified drugs, medicaments and biological

substances, accidental (unintentional), initial encounter

2 T40601A

Poisoning by unspecified narcotics, accidental

(unintentional), initial encounter

3 T50902A

Poisoning by unspecified drugs, medicaments and biological

substances, intentional self-harm, initial encounter

4 T40602A

Poisoning by unspecified narcotics, intentional self-harm,

initial encounter

5 T50904A

Poisoning by unspecified drugs, medicaments and biological

substances, undetermined, initial encounter

6 T40604A

Poisoning by unspecified narcotics, undetermined, initial

encounter

7 T4271XA

Poisoning by unspecified antiepileptic and sedative-

hypnotic drugs, accidental (unintentional), initial encounter

8 T4272XA

Poisoning by unspecified antiepileptic and sedative-

hypnotic drugs, intentional self-harm, initial encounter

9 T43202A

Poisoning by unspecified antidepressants, intentional self-

harm, initial encounter

10 T4274XA

Poisoning by unspecified antiepileptic and sedative-

hypnotic drugs, undetermined, initial encounter

In ICD-9-CM (from 1/2014 to 9/2015), the code for poisoning by other and unspecified anticonvulsants ranked number one., ICD-9-CM 9663. The CMS general equivalency mapping of ICD-9-CM 9663 to maps to 16 different ICD-10-CM increased the options for poisonings by anticonvulsants

In ICD-10-CM (10/2015 to 9/2016), ICD-10-CM T50901A, unspecified medicaments and biologicals based on intentionality (accidental) and encounter sequence (initial encounter) became number one.

ICD-9-CM to ICD-10-CM General Equivalence Mapping for the Top Ranking

Inpatient Acute Care Hospital Unspecified Poisoning Diagnosis

ICD-9-CM Description ICD-10-CM Description

9963Poisoning by other and unspecified

anticonvulsants T421X1A Poisoning by iminostilbenes, accidental (unintentional), initial encounter

T421X2A Poisoning by iminostilbenes, intentional self-harm, initial encounter

T421X3A Poisoning by iminostilbenes, assault, initial encounter

T421X4A Poisoning by iminostilbenes, undetermined, initial encounter

T425X1APoisoning by mixed antiepileptics, accidental (unintentional), initial encounter

T425X2A Poisoning by mixed antiepileptics, intentional self-harm, initial encounter

T425X3A Poisoning by mixed antiepileptics, assault, initial encounter

T425X4A Poisoning by mixed antiepileptics, undetermined, initial encounter

T426X1APoisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter

T426X2APoisoning by other antiepileptic and sedative-hypnotic drugs, intentional self-harm, initial encounter

T426X3APoisoning by other antiepileptic and sedative-hypnotic drugs, assault, initial encounter

T426X4APoisoning by other antiepileptic and sedative-hypnotic drugs, undetermined, initial encounter

T4271XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter

T4272XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, intentional self-harm, initial encounter

T4273XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, assault, initial encounter

T4274XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, undetermined, initial encounter

The top ranking inpatient unspecified poisoning diagnosis (ICD-9-CM 9633) mapped to sixteen ICD-10-CM codes which provide new Information on anticonvulsant class, mixtures, intentionality, and episode sequence.

ICD-9-CM 9963 Crosswalk to Sixteen ICD-10-CM Codes

Within the sixteen crosswalk codes for ICD-9-CM 9963, in FY2016 ICD-10-CM T426X2A (Poisoning by other antiepileptic and sedative-hypnotic drugs, intentional self-harm, initial encounter) ranked number one providing new information on the intentional anticonvulsants for self-harm.

Massachusetts All Payer Claims Data (APCD)

ICD-10-CM coding for Trauma Patients in Prehospital Outpatient Ground and Air Ambulance Health Care Setting

Top 10 Ambulance ICD-10-CM Unspecified Traumatic Injury Diagnoses

October 2015 to September 2016

Rank ICD-10-CM Description

1 T148 Other injury of unspecified body region

2 S0990XA Unspecified injury of head, initial encounter

3 T1490 Injury, unspecified

4 S3690XA

Unspecified injury of unspecified intra-

abdominal organ, initial encounter

5 T07 Unspecified multiple injuries

6 S0190XA

Unspecified open wound of unspecified part of

head, initial encounter

7 S3982XA

Other specified injuries of lower back, initial

encounter

8 S0993XA Unspecified injury of face, initial encounter

9 S090XXA

Injury of blood vessels of head, not elsewhere

classified, initial encounter

10 S72009A

Fracture of unspecified part of neck of

unspecified femur, initial encounter for closed

fracture

Prehospital Ground and

Air Ambulance

Outpatient Emergency

Department

Inpatient Hospitalization

Post Discharge Care Settings

The APCD facilitates monitoring increased specificity in diagnosis from the prehospital to hospital care setting. ICD-10-CM T148 (Other Injury of Unspecified Body Region) was top ranking prehospital trauma diagnosis. APCD prehospital T148 trauma patients could be tracked for their prehospital diagnosis to their more specific hospital diagnosis following radiology for more specific diagnosis.

APCD allows prehospital T148 tracking across the entire spectrum of care

Top ICD-10-CM Inpatient Diagnosis for Prehospital T148 Patients

October 2015 to September 2016

Rank ICD-10-CM Full Description

1 S72142A

Displaced intertrochanteric fracture of left

femur, initial encounter for closed fracture

2 S72141A

Displaced intertrochanteric fracture of right

femur, initial encounter for closed fracture

3 S72012A

Unspecified intracapsular fracture of left femur,

initial encounter for closed fracture

4 S7222XA

Displaced subtrochanteric fracture of left femur,

initial encounter for closed fracture

5 S72002A

Fracture of unspecified part of neck of left

femur, initial encounter for closed fracture

Inpatient Diagnosis

CMS General Equivalence Mapping for a Top Ground and Air

Ambulance Inpatient Unspecified Traumatic Injury Diagnosis

ICD-9-CM Description ICD-10-CM Description

9597

Injury, other and unspecified, knee,

leg, ankle, and foot S8980XAOTHER SPECIFIED INJURIES OF UNSPECIFIED LOWER LEG, INITIAL ENCOUNTER

S8990XA UNSPECIFIED INJURY OF UNSPECIFIED LOWER LEG, INITIAL ENCOUNTER

S99819A OTHER SPECIFIED INJURIES OF UNSPECIFIED ANKLE, INITIAL ENCOUNTER

S99919A UNSPECIFIED INJURY OF UNSPECIFIED ANKLE, INITIAL ENCOUNTER

A top ranking inpatient unspecified injury diagnosis (ICD-9-CM 9597) mapped to sixteen ICD-10-CM codes which provide new Information on anticonvulsant class, mixtures, intentionality, and episode sequence.

ICD-9-CM 9597 Crosswalk to Sixteen ICD-10-CM Codes

Within the 4 crosswalk codes for ICD-9-CM 9597, in FY2016 ICD-10-CM S8980XA (Other Specified injuries of unspecified lower leg, initial encounter)ranked number one providing new information episode of care sequence and anatomic location.

CONCLUSION

• Public health researchers have historically bemoaned the quality and availability of cause data in claims-based information systems. The transition to ICD-10-CM and its increased embedding of intentionality codes demonstrates enormous benefits for public health injury surveillance.

• ICD-10-CM’s increased encoding of encounter sequence will improve the calculation of disease and injury incident rates.

• The transition from ICD-9-CM to ICD-10-CM produced a shifting in the ranking of unspecified diagnosis codes and additional unspecified codes. However, ICD-10-CM’s provision of increased anatomic and physiologic and cause specificity facilitates aligning codes with clinical facts collected from the provider’s encounter with the patient even in the outpatient ambulance setting.