This is a system I have used for years for headers, and find very few, if any conflicts with other words.
They all start with V, but if you do not like that, you can change the first letter to suit you.
vapl=ASSESSMENT AND PLAN:
vasntnd=ABDOMEN: Soft, nontender, and nondistended.
vasse=ASSESSMENT:
vb=BACK:
vca=CARDIAC:
vch=CHEST:
vchc=CHIEF COMPLAINT:
vchcl=CHEST: Clear.
vclassw=CLASSIFICATION OF WOUND:
vcmed=CURRENT MEDICATIONS:
vcmeds=CURRENT MEDICATIONS:
vcv=CARDIOVASCULAR:
vddiet=DISCHARGE DIET:
vdeopr=DETAILS OF PROCEDURE:
vdisp=DISPOSITION:
vdmeds=DISCHARGE MEDICATIONS:
vdoa=DATE OF ADMISSION:
vdod=DATE OF DISCHARGE:
vdoo=DATE OF OPERATION:
vdop=DESCRIPTION OF PROCEDURE:
vdx=DIAGNOSIS:
vears=EARS:
vebl=ESTIMATED BLOOD LOSS:
vebll=ESTIMATED BLOOD LOSS: Less than
veblm=ESTIMATED BLOOD LOSS: Minimal.
vext=EXTREMITIES:
veyes=EYES:
vfh=FAMILY HISTORY:
vfind=FINDINGS:
vfmh=FAMILY MEDICAL HISTORY:
vfp=FINDINGS AND PROCEDURE:
vfu=FOLLOWUP:
vgen=GENERAL:
vgi=GASTROINTESTINAL:
vgu=GENITOURINARY:
vhab=HABITS:
vhc=HOSPITAL COURSE:
vhead=HEAD:
vheent=HEAD, EYES, EARS, NOSE AND THROAT:
vho=History of
vhpi=HISTORY OF PRESENT ILLNESS:
vhrrr=HEART: Regular rate and rhythm
vht=HEART:
vhx=HISTORY:
vifo=INDICATION FOR OPERATION:
vifp=INDICATION FOR PROCEDURE:
vimp=IMPRESSION:
vifsu=INDICATION FOR SURGERY:
vl=LUNGS:
vlabd=LABORATORY DATA:
vlc=LUNGS: Clear
vlca=LUNGS: Clear to auscultation
vlcab=LUNGS: Clear to auscultation bilaterally
vlcap=LUNGS: Clear to auscultation and percussion
vlung=LUNGS:
vmed=MEDICATIONS:
vmeds=MEDICATIONS:
vmsk=MUSCULOSKELETAL:
vn=NECK:
vneck=NECK:
vneu=NEUROLOGIC:
vnle=NEUROLOGICAL EXAMINATION:
vns=NECK: Supple
vnsc=NEEDLE AND SPONGE COUNTS:
vpdx=PRINCIPAL DIAGNOSIS:
vpf=PROCEDURE AND FINDINGS:
vph=PAST HISTORY:
vpid=PROCEDURE IN DETAIL:
vplan=PLAN:
vpmh=PAST MEDICAL HISTORY:
vpodx=POSTOPERATIVE DIAGNOSIS:
vpopdx=POST-PROCEDURE DIAGNOSIS:
vppx=PERTINENT PHYSICAL EXAMINATION:
vpr=PROCEDURE:
vprdx=PREOPERATIVE DIAGNOSIS:
vpredx=PREOPERATIVE DIAGNOSIS:
vprepdx=PRE-PROCEDURE DIAGNOSIS:
vproc=PROCEDURE:
vprpr=PROCEDURE PERFORMED:
vpsh=PAST SURGICAL HISTORY:
vpulm=PULMONARY:
vpx=PHYSICAL EXAMINATION:
vpxcg=PHYSICAL EXAMINATION: GENERAL:
vpxvs=PHYSICAL EXAMINATION: VITAL SIGNS:
vrec=RECOMMENDATION:
vrecdis=RECOMMENDATIONS AND DISCUSSION:
vresp=RESPIRATORY:
vrfa=REASON FOR ADMISSION:
vros=REVIEW OF SYSTEMS:
vsh=SOCIAL HISTORY:
vsnc=SPONGE AND NEEDLE COUNTS: Correct
vspec=SPECIMENS:
I use the same abbreviations for headers that are bolded, but change the first letter to Z and add the codes for bolding into the shortcut.